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update history page to include Paris upgrade #7922

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merged 5 commits into from
Sep 26, 2022
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update history page to include Paris upgrade #7922

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1becd05
add paris to upgrade history
jmcook1186 Sep 19, 2022
76e5ea7
update webarchive link
jmcook1186 Sep 19, 2022
b42bab7
Update index.md
jmcook1186 Sep 20, 2022
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Update src/content/history/index.md
wackerow Sep 23, 2022
ea87ae7
etherscan link and block clarifier
wackerow Sep 26, 2022
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15 changes: 15 additions & 0 deletions src/content/history/index.md
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Expand Up @@ -26,6 +26,21 @@ Looking for future protocol upgrades? [Learn about upcoming upgrades to Ethereum

## 2022 {#2022}

### Paris (The Merge) {#paris}

<Emoji text=":calendar:" size={1} mr={"0.5rem"} mb={"0.5rem"} /><code>Sep-15-2022 06:42:42 AM +UTC</code><br />
<Emoji text=":bricks:" size={1} mr={"0.5rem"} mb={"0.5rem"} />Block number: 15537393<br />
<Emoji text=":money_bag:" size={1} mr={"0.5rem"} mb={"0.5rem"} />ETH price: $1,472 USD<br />
<Emoji text=":desktop_computer:" size={1} mr={"0.5rem"} mb={"0.5rem"} /> <a href="https://web.archive.org/web/20220915075314/https://ethereum.org/">ethereum.org on waybackmachine</a>

#### Summary {paris-summary}

The Paris upgrade was triggered by the proof-of-work blockchain passing a [terminal total difficulty](/glossary/#terminal-total-difficulty) of 58750000000000000000000. This happened at block 15537393 on 15th September 2022. Paris was The Merge transition - its major feature was switching off the proof-of-work mining algorithm and associated consensus logic and switching on proof-of-stake instead. Paris itself was an upgrade to the execution clients (equivalent to Bellatrix on the consensus layer) that enabled them to take instruction from their connected consensus clients. This required a new set of internal API methods, collectively known as the [Engine API](https://github.com/ethereum/execution-apis/blob/main/src/engine/specification.md), to be activated. This was arguably the most significant upgrade in Ethereum history since Homestead!
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- [Read the Paris upgrade specification](https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/paris.md)

---

### Bellatrix {#bellatrix}

<Emoji text=":calendar:" size={1} mr={"0.5rem"} mb={"0.5rem"} /><code>Sep-06-2022 11:34:47 AM +UTC</code><br />
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