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A Short History of the World, by HG Wells, published 1922.txt
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The Project Gutenberg eBook of A Short History of the World
This ebook is for the use of anyone anywhere in the United States and
most other parts of the world at no cost and with almost no restrictions
whatsoever. You may copy it, give it away or re-use it under the terms
of the Project Gutenberg License included with this ebook or online
at www.gutenberg.org. If you are not located in the United States,
you will have to check the laws of the country where you are located
before using this eBook.
Title: A Short History of the World
Author: H. G. Wells
Release date: March 2, 2011 [eBook #35461]
Most recently updated: October 27, 2021
Language: English
*** START OF THE PROJECT GUTENBERG EBOOK A SHORT HISTORY OF THE WORLD ***
A SHORT
HISTORY OF THE WORLD
By H. G. WELLS
New York
THE MACMILLAN & COMPANY
1922
_Copyright 1922_
CONTENTS CHAPTER Page
A SHORT HISTORY OF THE WORLD
I. THE WORLD IN SPACE 1
II. THE WORLD IN TIME 5
III. THE BEGINNINGS OF LIFE 11
IV. THE AGE OF FISHES 16
V. THE AGE OF THE COAL SWAMPS 21
VI. THE AGE OF REPTILES 26
VII. THE FIRST BIRDS AND THE FIRST MAMMALS 31
VIII. THE AGE OF MAMMALS 37
IX. MONKEYS, APES AND SUB-MEN 43
X. THE NEANDERTHALER AND THE RHODESIAN MAN 48
XI. THE FIRST TRUE MEN 53
XII. PRIMITIVE THOUGHT 60
XIII. THE BEGINNINGS OF CULTIVATION 65
XIV. PRIMITIVE NEOLITHIC CIVILIZATIONS 71
XV. SUMERIA, EARLY EGYPT AND WRITING 77
XVI. PRIMITIVE NOMADIC PEOPLES 84
XVII. THE FIRST SEA-GOING PEOPLES 91
XVIII. EGYPT, BABYLON AND ASSYRIA 96
XIX. THE PRIMITIVE ARYANS 104
XX. THE LAST BABYLONIAN EMPIRE AND THE EMPIRE OF DARIUS I 109
XXI. THE EARLY HISTORY OF THE JEWS 115
XXII. PRIESTS AND PROPHETS IN JUDEA 122
XXIII. THE GREEKS 127
XXIV. THE WARS OF THE GREEKS AND PERSIANS 134
XXV. THE SPLENDOUR OF GREECE 139
XXVI. THE EMPIRE OF ALEXANDER THE GREAT 145
XXVII. THE MUSEUM AND LIBRARY AT ALEXANDRIA 150
XXVIII. THE LIFE OF GAUTAMA BUDDHA 156
XXIX. KING ASOKA 163
XXX. CONFUCIUS AND LAO TSE 167
XXXI. ROME COMES INTO HISTORY 174
XXXII. ROME AND CARTHAGE 180
XXXIII. THE GROWTH OF THE ROMAN EMPIRE 185
XXXIV. BETWEEN ROME AND CHINA 196
XXXV. THE COMMON MAN’S LIFE UNDER THE EARLY ROMAN EMPIRE 201
XXXVI. RELIGIOUS DEVELOPMENTS UNDER THE ROMAN EMPIRE 208
XXXVII. THE TEACHING OF JESUS 214
XXXVIII. THE DEVELOPMENT OF DOCTRINAL CHRISTIANITY 222
XXXIX. THE BARBARIANS BREAK THE EMPIRE INTO EAST AND WEST 227
XL. THE HUNS AND THE END OF THE WESTERN EMPIRE 233
XLI. THE BYZANTINE AND SASSANID EMPIRES 238
XLII. THE DYNASTIES OF SUY AND TANG IN CHINA 245
XLIII. MUHAMMAD AND ISLAM 248
XLIV. THE GREAT DAYS OF THE ARABS 253
XLV. THE DEVELOPMENT OF LATIN CHRISTENDOM 258
XLVI. THE CRUSADES AND THE AGE OF PAPAL DOMINION 267
XLVII. RECALCITRANT PRINCES AND THE GREAT SCHISM 277
XLVIII. THE MONGOL CONQUESTS 287
XLIX. THE INTELLECTUAL REVIVAL OF THE EUROPEANS 294
L. THE REFORMATION OF THE LATIN CHURCH 304
LI. THE EMPEROR CHARLES V 309
LII. THE AGE OF POLITICAL EXPERIMENTS; OF GRAND MONARCHY AND
PARLIAMENTS AND REPUBLICANISM IN EUROPE 318
LIII. THE NEW EMPIRES OF THE EUROPEANS IN ASIA AND OVERSEAS 329
LIV. THE AMERICAN WAR OF INDEPENDENCE 335
LV. THE FRENCH REVOLUTION AND THE RESTORATION OF MONARCHY IN FRANCE 341
LVI.
THE UNEASY PEACE IN EUROPE THAT FOLLOWED THE FALL OF NAPOLEON 349
LVII. THE DEVELOPMENT OF MATERIAL KNOWLEDGE 355
LVIII. THE INDUSTRIAL REVOLUTION 365
LIX. THE DEVELOPMENT OF MODERN POLITICAL AND SOCIAL IDEAS 370
LX. THE EXPANSION OF THE UNITED STATES 382
LXI. THE RISE OF GERMANY TO PREDOMINANCE IN EUROPE 390
LXII. THE NEW OVERSEAS EMPIRES OF THE STEAMSHIP AND RAILWAY 393
LXIII.
EUROPEAN AGGRESSION IN ASIA, AND THE RISE OF JAPAN 399
LXIV. THE BRITISH EMPIRE IN 1914 405
LXV. THE AGE OF ARMAMENT IN EUROPE, AND THE GREAT WAR OF 1914-18 409
LXVI. THE REVOLUTION AND FAMINE IN RUSSIA 415
LXVII. THE POLITICAL AND SOCIAL RECONSTRUCTION OF THE WORLD 421
CHRONOLOGICAL TABLE 429
INDEX 439
LIST OF ILLUSTRATIONS
Page
Luminous Spiral Clouds of Matter 2
Nebula seen Edge-on 3
The Great Spiral Nebula 6
A Dark Nebula 7
Another Spiral Nebula 8
Landscape before Life 9
Marine Life in the Cambrian Period 12
Fossil Trilobite 13
Early Palæozoic Fossils of various Species of
Lingula 14
Fossilized Footprints of a Labyrinthodont, Cheirotherium 15
Pterichthys Milleri 17
Fossil of Cladoselache 18
Sharks and Ganoids of the Devonian Period 19
A Carboniferous Swamp 22
Skull of a Labyrinthodont, Capitosaurus 23
Skeleton of a Labyrinthodont: The Eryops 24
A Fossil Ichthyosaurus 27
A Pterodactyl 28
The Diplodocus 29
Fossil of Archeopteryx 32
Hesperornis in its Native Seas 33
The Ki-wi 34
Slab of Marl Rich in Cainozoic Fossils 35
Titanotherium Robustum 38
Skeleton of Giraffe-camel 40
Skeleton of Early Horse 40
Comparative Sizes of Brains of Rhinoceros and Dinoceras 41
A Mammoth 44
Flint Implements from Piltdown Region 45
A Pithecanthropean Man 46
The Heidelberg Man 46
The Piltdown Skull 47
A Neanderthaler 49
Europe and Western Asia 50,000 years ago
_Map_ 50
Comparison of Modern Skull and Rhodesian Skull 51
Altamira Cave Paintings 54
Later Palæolithic Carvings 55
Bust of Cro-magnon Man 57
Later Palæolithic Art 58
Relics of the Stone Age 62
Gray’s Inn Lane Flint Implement 63
Somaliland Flint Implement 63
Neolithic Flint Implement 67
Australian Spearheads 68
Neolithic Pottery 69
Relationship of Human Races _Map_ 72
A Maya Stele 73
European Neolithic Warrior 75
Babylonian Brick 78
Egyptian Cylinder Seals of First Dynasty 79
The Sakhara Pyramids 80
The Pyramid of Cheops: Scene from Summit 81
The Temple of Hathor 82
Pottery and Implements of the Lake
Dwellers 85
A Lake Village 86
Flint Knives of 4500 B.C. 87
Egyptian Wall Paintings of Nomads 87
Egyptian Peasants Going to Work 88
Stele of Naram Sin 89
The Treasure House at Mycenæ 93
The Palace at Cnossos 95
Temple at Abu Simbel 97
Avenue of Sphinxes at Karnak 98
The Hypostyle Hall at Karnak 99
Frieze of Slaves 101
The Temple of Horus, Edfu 103
Archaic Amphora 105
The Mound of Nippur 107
Median and Chaldean Empires _Map_ 110
The Empire of Darius _Map_ 111
A Persian Monarch 112
The Ruins of Persepolis 113
The Great Porch of Xerxes 113
The Land of the Hebrews _Map_ 117
Nebuchadnezzar’s Mound at Babylon 118
The Ishtar Gateway, Babylon 120
Black Obelisk of Shalmaneser II 124
Captive Princes making Obeisance 125
Statue of Meleager 128
Ruins of Temple of Zeus 130
The Temple of Neptune, Pæstum 132
Greek Ships on Ancient Pottery 135
The Temple of Corinth 137
The Temple of Neptune at Cape Sunium 138
Frieze of the Parthenon, Athens 140
The Acropolis, Athens 141
Theatre at Epidauros, Greece 141
The Caryatides of the Erechtheum 142
Athene of the Parthenon 143
Alexander the Great 146
Alexander’s Victory at Issus 147
The Apollo Belvedere 148
Aristotle 152
Statuette of Maitreya 153
The Death of Buddha 154
Tibetan Buddha 158
A Burmese Buddha 159
The Dhamêkh Tower, Sarnath 160
A Chinese Buddhist Apostle 164
The Court of Asoka 165
Asoka Panel from Bharhut 165
The Pillar of Lions (Asokan) 166
Confucius 169
The Great Wall of China 171
Early Chinese Bronze Bell 172
The Dying Gaul 175
Ancient Roman Cisterns at Carthage 177
Hannibal 181
Roman Empire and its Alliances, 150 B.C. _Map_ 183
The Forum, Rome 188
Ruined Coliseum in Tunis 189
Roman Arch at Ctesiphon 190
The Column of Trajan, Rome 193
Glazed Jar of Han Dynasty 197
Vase of Han Dynasty 198
Chinese Vessel in Bronze 199
A Gladiator (contemporary representation) 202
A Street in Pompeii 204
The Coliseum, Rome 206
Interior of Coliseum 206
Mithras Sacrificing a Bull 210
Isis and Horus 211
Bust of Emperor Commodus 212
Early Portrait of Jesus Christ 216
Road from Nazareth to Tiberias 217
David’s Tower and Wall of Jerusalem 218
A Street in Jerusalem 219
The Peter and Paul Mosaic at Rome 223
Baptism of Christ (Ivory Panel) 225
Roman Empire and the Barbarians _Map_ 228
Constantine’s Pillar, Constantinople 229
The Obelisk of Theodosius, Constantinople 231
Head of Barbarian Chief 235
The Church of S. Sophia, Constantinople 239
Roof-work in S. Sophia 240
Justinian and his Court 241
The Rock-hewn Temple at Petra 242
Chinese Earthenware of Tang Dynasty 246
At Prayer in the Desert 250
Looking Across the Sea of Sand 251
Growth of Moslem Power _Map_ 254
The Moslem Empire _Map_ 254
The Mosque of Omar, Jerusalem 255
Cairo Mosques 256
Frankish Dominions of Martel _Map_ 260
Statue of Charlemagne 262
Europe at Death of Charlemagne _Map_ 264
Crusader Tombs, Exeter Cathedral 268
View of Cairo 269
The Horses of S. Mark, Venice 271
Courtyard in the Alhambra 273
Milan Cathedral (showing spires) 278
A Typical Crusader 280
Burgundian Nobility (Statuettes) 283
Burgundian Nobility (Statuettes) 284
The Empire of Jengis Khan _Map_ 288
Ottoman Empire before 1453 _Map_ 289
Tartar Horsemen 291
Ottoman Empire, 1566 _Map_ 292
An Early Printing Press 296
Ancient Bronze from Benin 299
Negro Bronze-work 300
Early Sailing Ship (Italian Engraving) 301
Portrait of Martin Luther 305
The Church Triumphant (Italian Majolica work, 1543) 307
Charles V (the Titian Portrait) 311
S. Peter’s, Rome: the High Altar 315
Cromwell Dissolves the Long Parliament 321
The Court at Versailles 323
Sack of a Village, French Revolution 325
Central Europe after Peace of Westphalia,
1648 _Map_ 326
European Territory in America, 1750 _Map_ 330
Europeans Tiger Hunting in India 331
Fall of Tippoo Sultan 332
George Washington 337
The Battle of Bunker Hill 338
The U.S.A., 1790 339
The Trial of Louis XVI 344
Execution of Marie Antoinette 346
Portrait of Napoleon 352
Europe after the Congress of Vienna _Map_ 353
Early Rolling Stock, Liverpool and Manchester
Railway 356
Passenger Train in 1833 356
The Steamboat _Clermont_ 357
Eighteenth Century Spinning Wheel 361
Arkwright’s Spinning Jenny 361
An Early Weaving Machine 363
An Incident of the Slave Trade 367
Early Factory, in Colebrookdale 368
Carl Marx 372
Electric Conveyor, in Coal Mine 376
Constructional Detail, Forth Bridge 378
American River Steamer 385
Abraham Lincoln 387
Europe, 1848-71 _Map_ 391
Victoria Falls, Zambesi 395
The British Empire, 1815 _Map_ 397
Japanese Soldier, Eighteenth Century 401
A Street in Tokio 403
Overseas Empires of Europe, 1914 _Map_ 406
Gibraltar 407
Street in Hong Kong 408
British Tank in Battle 410
The Ruins of Ypres 411
Modern War: War Entanglements 412
A View in Petersburg under Bolshevik Rule 418
Passenger Aeroplane in Flight 423
A Peaceful Garden in England 426
A SHORT HISTORY OF THE WORLD
I
THE WORLD IN SPACE
The story of our world is a story that is still very imperfectly known.
A couple of hundred years ago men possessed the history of little more
than the last three thousand years. What happened before that time was
a matter of legend and speculation. Over a large part of the civilized
world it was believed and taught that the world had been created
suddenly in 4004 B.C., though authorities differed as to whether this
had occurred in the spring or autumn of that year. This fantastically
precise misconception was based upon a too literal interpretation of
the Hebrew Bible, and upon rather arbitrary theological assumptions
connected therewith. Such ideas have long since been abandoned by
religious teachers, and it is universally recognized that the universe
in which we live has to all appearances existed for an enormous period
of time and possibly for endless time. Of course there may be
deception in these appearances, as a room may be made to seem endless
by putting mirrors facing each other at either end. But that the
universe in which we live has existed only for six or seven thousand
years may be regarded as an altogether exploded idea.
The earth, as everybody knows nowadays, is a spheroid, a sphere
slightly compressed, orange fashion, with a diameter of nearly 8,000
miles. Its spherical shape has been known at least to a limited number
of intelligent people for nearly 2,500 years, but before that time it
was supposed to be flat, and various ideas which now seem fantastic
were entertained about its relations to the sky and the stars and
planets. We know now that it rotates upon its axis (which is about 24
miles shorter than its equatorial diameter) every twenty-four hours,
and that this is the cause of the alternations of day and night, that
it circles about the sun in a slightly distorted and slowly variable
oval path in a year. Its distance from the sun varies between
ninety-one and a half millions at its nearest and ninety-four and a
half million miles.
LUMINOUS SPIRAL CLOUDS OF MATTER
“LUMINOUS SPIRAL CLOUDS OF MATTER”
(Nebula photographed 1910)
_Photo: G. W. Ritchey_
About the earth circles a smaller sphere, the moon, at an average
distance of 239,000 miles. Earth and moon are not the only bodies to
travel round the sun. There are also the planets, Mercury and Venus,
at distances of thirty-six and sixty-seven millions of miles; and
beyond the circle of the earth and disregarding a belt of numerous
smaller bodies, the planetoids, there are Mars, Jupiter, Saturn,
Uranus and Neptune at mean distances of 141, 483, 886, 1,782, and 1,793
millions of miles respectively. These figures in millions of miles are
very difficult for the mind to grasp. It may help the reader’s
imagination if we reduce the sun and planets to a smaller, more
conceivable scale.
THE NEBULA SEEN EDGE ON
THE NEBULA SEEN EDGE-ON
Note the central core which, through millions of years, is cooling to
solidity
_Photo: G. W. Ritchey_
If, then, we represent our earth as a little ball of one inch diameter,
the sun would be a big globe nine feet across and 323 yards away, that
is about a fifth of a mile, four or five minutes’ walking. The moon
would be a small pea two feet and a half from the world. Between earth
and sun there would be the two inner planets, Mercury and Venus, at
distances of one hundred and twenty-five and two hundred and fifty
yards from the sun. All round and about these bodies there would be
emptiness until you came to Mars, a hundred and seventy-five feet
beyond the earth; Jupiter nearly a mile away, a foot in diameter;
Saturn, a little smaller, two miles off; Uranus four miles off and
Neptune six miles off. Then nothingness and nothingness except for
small particles and drifting scraps of attenuated vapour for thousands
of miles. The nearest star to earth on this scale would be 40,000
miles away.
These figures will serve perhaps to give one some conception of the
immense emptiness of space in which the drama of life goes on.
For in all this enormous vacancy of space we know certainly of life
only upon the surface of our earth. It does not penetrate much more
than three miles down into the 4,000 miles that separate us from the
centre of our globe, and it does not reach more than five miles above
its surface. Apparently all the limitlessness of space is otherwise
empty and dead.
The deepest ocean dredgings go down to five miles. The highest recorded
flight of an aeroplane is little more than four miles. Men have reached
to seven miles up in balloons, but at a cost of great suffering. No
bird can fly so high as five miles, and small birds and insects which
have been carried up by aeroplanes drop off insensible far below that
level.
II
THE WORLD IN TIME
In the last fifty years there has been much very fine and interesting
speculation on the part of scientific men upon the age and origin of
our earth. Here we cannot pretend to give even a summary of such
speculations because they involve the most subtle mathematical and
physical considerations. The truth is that the physical and
astronomical sciences are still too undeveloped as yet to make anything
of the sort more than an illustrative guesswork. The general tendency
has been to make the estimated age of our globe longer and longer. It
now seems probable that the earth has had an independent existence as a
spinning planet flying round and round the sun for a longer period than
2,000,000,000 years. It may have been much longer than that. This is a
length of time that absolutely overpowers the imagination.
Before that vast period of separate existence, the sun and earth and
the other planets that circulate round the sun may have been a great
swirl of diffused matter in space. The telescope reveals to us in
various parts of the heavens luminous spiral clouds of matter, the
spiral nebulæ, which appear to be in rotation about a centre. It is
supposed by many astronomers that the sun and its planets were once
such a spiral, and that their matter has undergone concentration into
its present form. Through majestic æons that concentration went on
until in that vast remoteness of the past for which we have given
figures, the world and its moon were distinguishable. They were
spinning then much faster than they are spinning now; they were at a
lesser distance from the sun; they travelled round it very much faster,
and they were probably incandescent or molten at the surface. The sun
itself was a much greater blaze in the heavens.
THE GREAT SPIRAL NEBULA
THE GREAT SPIRAL NEBULA
_Photo: G. W. Ritchey_
If we could go back through that infinitude of time and see the earth
in this earlier stage of its history, we should behold a scene more
like the interior of a blast furnace or the surface of a lava flow
before it cools and cakes over than any other contemporary scene. No
water would be visible because all the water there was would still be
superheated steam in a stormy atmosphere of sulphurous and metallic
vapours. Beneath this would swirl and boil an ocean of molten rock
substance. Across a sky of fiery clouds the glare of the hurrying sun
and moon would sweep swiftly like hot breaths of flame.
A DARK NEBULA
A DARK NEBULA
_Taken in 1920 with the aid of the largest telescope in the world. One
of the first photographs taken by the Mount Wilson telescope._
There are dark nebulæ and bright nebulæ. Prof. Henry Norris Russell,
against the British theory, holds that the dark nebulæ preceded the
bright nebulæ.
_Photo: Prof. Hale_
Slowly by degrees as one million of years followed another, this fiery
scene would lose its eruptive incandescence. The vapours in the sky
would rain down and become less dense overhead; great slaggy cakes of
solidifying rock would appear upon the surface of the molten sea, and
sink under it, to be replaced by other floating masses. The sun and
moon growing now each more distant and each smaller, would rush with
diminishing swiftness across the heavens. The moon now, because of its
smaller size, would be already cooled far below incandescence, and
would be alternately obstructing and reflecting the sunlight in a
series of eclipses and full moons.
ANOTHER SPIRAL NEBULA
ANOTHER SPIRAL NEBULA
_Photo: G. W. Ritchey_
And so with a tremendous slowness through the vastness of time, the
earth would grow more and more like the earth on which we live, until
at last an age would come when, in the cooling air, steam would begin
to condense into clouds, and the first rain would fall hissing upon the
first rocks below. For endless millenia the greater part of the
earth’s water would still be vaporized in the atmosphere, but there
would now be hot streams running over the crystallizing rocks below and
pools and lakes into which these streams would be carrying detritus and
depositing sediment.
LANDSCAPE BEFORE LIFE
LANDSCAPE BEFORE LIFE
“Great lava-like masses of rock without traces of soil”
At last a condition of things must have been attained in which a man
might have stood up on earth and looked about him and lived. If we
could have visited the earth at that time we should have stood on great
lava-like masses of rock without a trace of soil or touch of living
vegetation, under a storm-rent sky. Hot and violent winds, exceeding
the fiercest tornado that ever blows, and downpours of rain such as our
milder, slower earth to-day knows nothing of, might have assailed us.
The water of the downpour would have rushed by us, muddy with the
spoils of the rocks, coming together into torrents, cutting deep gorges
and canyons as they hurried past to deposit their sediment in the
earliest seas. Through the clouds we should have glimpsed a great sun
moving visibly across the sky, and in its wake and in the wake of the
moon would have come a diurnal tide of earthquake and upheaval. And
the moon, which nowadays keeps one constant face to earth, would then
have been rotating visibly and showing the side it now hides so
inexorably.
The earth aged. One million years followed another, and the day
lengthened, the sun grew more distant and milder, the moon’s pace in
the sky slackened; the intensity of rain and storm diminished and the
water in the first seas increased and ran together into the ocean
garment our planet henceforth wore.
But there was no life as yet upon the earth; the seas were lifeless,
and the rocks were barren.
III
THE BEGINNINGS OF LIFE
As everybody knows nowadays, the knowledge we possess of life before
the beginnings of human memory and tradition is derived from the
markings and fossils of living things in the stratified rocks. We find
preserved in shale and slate, limestone, and sandstone, bones, shells,
fibres, stems, fruits, footmarks, scratchings and the like, side by
side with the ripple marks of the earliest tides and the pittings of
the earliest rain-falls. It is by the sedulous examination of this
Record of the Rocks that the past history of the earth’s life has been
pieced together. That much nearly everybody knows to-day. The
sedimentary rocks do not lie neatly stratum above stratum; they have
been crumpled, bent, thrust about, distorted and mixed together like
the leaves of a library that has been repeatedly looted and burnt, and
it is only as a result of many devoted lifetimes of work that the
record has been put into order and read. The whole compass of time
represented by the record of the rocks is now estimated as
1,600,000,000 years.
The earliest rocks in the record are called by geologists the Azoic
rocks, because they show no traces of life. Great areas of these Azoic
rocks lie uncovered in North America, and they are of such a thickness
that geologists consider that they represent a period of at least half
of the 1,600,000,000 which they assign to the whole geological record.
Let me repeat this profoundly significant fact. Half the great interval
of time since land and sea were first distinguishable on earth has left
us no traces of life. There are ripplings and rain marks still to be
found in these rocks, but no marks nor vestiges of any living thing.
MARINE LIFE IN THE CAMBRIAN PERIOD
MARINE LIFE IN THE CAMBRIAN PERIOD
1 and 8, Jellyfishes; 2, Hyolithes (swimming snail); 3, Humenocaris;
4, Protospongia; 5, Lampshells (Obolella); 6, Orthoceras; 7,
Trilobite (Paradoxides) — see fossil on page 13; 9, Coral
(Archæocyathus); 10, Bryograptus; 11, Trilobite (Olenellus); 12,
Palesterina
Then, as we come up the record, signs of past life appear and increase.
The age of the world’s history in which we find these past traces is
called by geologists the Lower Palæozoic age. The first indications
that life was astir are vestiges of comparatively simple and lowly
things: the shells of small shellfish, the stems and flowerlike heads
of zoophytes, seaweeds and the tracks and remains of sea worms and
crustacea. Very early appear certain creatures rather like plant-lice,
crawling creatures which could roll themselves up into balls as the
plant-lice do, the trilobites. Later by a few million years or so come
certain sea scorpions, more mobile and powerful creatures than the
world had ever seen before.
FOSSIL TRILOBITE (SLIGHTLY MAGNIFIED)
FOSSIL TRILOBITE (SLIGHTLY MAGNIFIED)
_Photo: John J. Ward, F.E.S._
None of these creatures were of very great size. Among the largest
were certain of the sea scorpions, which measured nine feet in length.
There are no signs whatever of land life of any sort, plant or animal;
there are no fishes nor any vertebrated creatures in this part of the
record. Essentially all the plants and creatures which have left us
their traces from this period of the earth’s history are shallow-water
and intertidal beings. If we wished to parallel the flora and fauna of
the Lower Palæozoic rocks on the earth to-day, we should do it best,
except in the matter of size, by taking a drop of water from a rock
pool or scummy ditch and examining it under a microscope. The little
crustacea, the small shellfish, the zoophytes and algæ we should find
there would display a quite striking resemblance to these clumsier,
larger prototypes that once were the crown of life upon our planet.
EARLY PALÆOLITHIC FOSSILS OF VARIOUS SPECIES OF LINGULA
EARLY PALÆOLITHIC FOSSILS OF VARIOUS SPECIES OF LINGULA
Species of this most ancient genus of shellfish still live to-day
_(In Natural History Museum, London)_
It is well, however, to bear in mind that the Lower Palæozoic rocks
probably do not give us anything at all representative of the first
beginnings of life on our planet. Unless a creature has bones or other
hard parts, unless it wears a shell or is big enough and heavy enough
to make characteristic footprints and trails in mud, it is unlikely to
leave any fossilized traces of its existence behind. To-day there are
hundreds of thousands of species of small soft-bodied creatures in our
world which it is inconceivable can ever leave any mark for future
geologists to discover. In the world’s past, millions of millions of
species of such creatures may have lived and multiplied and flourished
and passed away without a trace remaining. The waters of the warm and
shallow lakes and seas of the so-called Azoic period may have teemed
with an infinite variety of lowly, jelly-like, shell-less and boneless
creatures, and a multitude of green scummy plants may have spread over
the sunlit intertidal rocks and beaches. The Record of the Rocks is no
more a complete record of life in the past than the books of a bank are
a record of the existence of everybody in the neighbourhood. It is
only when a species begins to secrete a shell or a spicule or a
carapace or a lime-supported stem, and so put by something for the
future, that it goes upon the Record. But in rocks of an age prior to
those which bear any fossil traces, graphite, a form of uncombined
carbon, is sometimes found, and some authorities consider that it may
have been separated out from combination through the vital activities
of unknown living things.
FOSSILIZED FOOTPRINTS OF A LABYRINTHODONT CHEIROTHERIUM
FOSSILIZED FOOTPRINTS OF A LABYRINTHODONT CHEIROTHERIUM
_(In Natural History Museum, London)_
IV
THE AGE OF FISHES
In the days when the world was supposed to have endured for only a few
thousand years, it was supposed that the different species of plants
and animals were fixed and final; they had all been created exactly as
they are to-day, each species by itself. But as men began to discover
and study the Record of the Rocks this belief gave place to the
suspicion that many species had changed and developed slowly through
the course of ages, and this again expanded into a belief in what is
called Organic Evolution, a belief that all species of life upon earth,
animal and vegetable alike, are descended by slow continuous processes
of change from some very simple ancestral form of life, some almost
structureless living substance, far back in the so-called Azoic seas.
This question of Organic Evolution, like the question of the age of the
earth, has in the past been the subject of much bitter controversy.
There was a time when a belief in organic evolution was for rather
obscure reasons supposed to be incompatible with sound Christian,
Jewish and Moslem doctrine. That time has passed, and the men of the
most orthodox Catholic, Protestant, Jewish and Mohammedan belief are
now free to accept this newer and broader view of a common origin of
all living things. No life seems to have happened suddenly upon earth.
Life grew and grows. Age by age through gulfs of time at which
imagination reels, life has been growing from a mere stirring in the
intertidal slime towards freedom, power and consciousness.
Life consists of individuals. These individuals are definite things,
they are not like the lumps and masses, nor even the limitless and
motionless crystals, of non-living matter, and they have two
characteristics no dead matter possesses. They can assimilate other
matter into themselves and make it part of themselves, and they can
reproduce themselves. They eat and they breed. They can give rise to
other individuals, for the most part like themselves, but always also a
little different from themselves. There is a specific and family
resemblance between an individual and its offspring, and there is an
individual difference between every parent and every offspring it
produces, and this is true in every species and at every stage of life.
SPECIMEN OF THE PTERICHTHYS MILLERI OR SEA SCORPION SHOWING BODY ARMOUR
SPECIMEN OF THE PTERICHTHYS MILLERI OR SEA SCORPION SHOWING BODY ARMOUR
Now scientific men are not able to explain to us either why offspring
should resemble nor why they should differ from their parents. But
seeing that offspring do at once resemble and differ, it is a matter
rather of common sense than of scientific knowledge that, if the
conditions under which a species live are changed, the species should
undergo some correlated changes. Because in any generation of the
species there must be a number of individuals whose individual
differences make them better adapted to the new conditions under which
the species has to live, and a number whose individuals whose
individual differences make it rather harder for them to live. And on
the whole the former sort will live longer, bear more offspring, and
reproduce themselves more abundantly than the latter, and so generation
by generation the average of the species will change in the favourable
direction. This process, which is called Natural Selection, is not so
much a scientific theory as a necessary deduction from the facts of
reproduction and individual difference. There may be many forces at
work varying, destroying and preserving species, about which science
may still be unaware or undecided, but the man who can deny the
operation of this process of natural selection upon life since its
beginning must be either ignorant of the elementary facts of life or
incapable of ordinary thought.
Many scientific men have speculated about the first beginning of life
and their speculations are often of great interest, but there is
absolutely no definite knowledge and no convincing guess yet of the way
in which life began. But nearly all authorities are agreed that it
probably began upon mud or sand in warm sunlit shallow brackish water,
and that it spread up the beaches to the intertidal lines and out to
the open waters.
FOSSIL OF THE CLADOSELACHE, A DEVONIAN SHARK
FOSSIL OF THE CLADOSELACHE, A DEVONIAN SHARK
_Nat. Hist. Mus._
That early world was a world of strong tides and currents. An
incessant destruction of individuals must have been going on through
their being swept up the beaches and dried, or by their being swept out
to sea and sinking down out of reach of air and sun. Early conditions
favoured the development of every tendency to root and hold on, every
tendency to form an outer skin and casing to protect the stranded
individual from immediate desiccation. From the very earliest any
tendency to sensitiveness to taste would turn the individual in the
direction of food, and any sensitiveness to light would assist it to
struggle back out of the darkness of the sea deeps and caverns or to
wriggle back out of the excessive glare of the dangerous shallows.
Probably the first shells and body armour of living things were
protections against drying rather than against active enemies. But
tooth and claw come early into our earthly history.
We have already noted the size of the earlier water scorpions. For
long ages such creatures were the supreme lords of life. Then in a
division of these Palæozoic rocks called the Silurian division, which
many geologists now suppose to be as old as five hundred million years,
there appears a new type of being, equipped with eyes and teeth and
swimming powers of an altogether more powerful kind. These were the
first known backboned animals, the earliest fishes, the first known
Vertebrata.
SHARKS AND GANOIDS OF THE DEVONIAN PERIOD
SHARKS AND GANOIDS OF THE DEVONIAN PERIOD
_By Alice Woodward_