added WW1 info

added information/texts/images as per DigitalHistory#193 request

history/events/world-war-1.md

@@ -1,3 +1,33 @@
 # First World War
+![Picture of the WW1 Trenches](https://images.theconversation.com/files/74245/original/image-20150310-13550-157oqi9.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=926&fit=clip)
+> "This is the war to end all wars."
+> Woodrow Wilson, 1917
+
+World War One, also known as the Great War, saw unprecedented destruction due to new military tactics and technology. The conflict ignited after the assassination of Archduke Franz Ferdinand in Serbia. Due to an extensive line of alliances, multiple superpowers were pulled into the war. It lasted from 1914 to 1918 in an Allied victory.
+
+Estimations of casualities, including military and civilian personnel, is around 68 million
+
+More information can be found [here](https://en.wikipedia.org/wiki/World_War_I)
+
+## Belligerents 
+### Allied Powers
+- France
+- Britain
+- Russian Empire (until 1917)
+- Serbia
+- Belgium
+- Japan
+- Italy (from 1915)
+- Montenegro
+- United States (from 1917)
+- *And others...*
+
+### Central Powers
+- Germany
+- Austria-Hungary
+- Ottman Empire
+- Bulgaria
+- *And others...*
+
+
 
-Gosh, this sure was important. Maybe someone should add a page here?