Ethereum's mainnet, often referred to as Ethereum 1.0, officially launched on July 30, 2015. As the second-largest cryptocurrency by market capitalization, it has now celebrated its fifth anniversary. This year is particularly significant for Ethereum as it approaches its planned transition to Ethereum 2.0. To mark this milestone, let's explore five key charts that illustrate Ethereum's journey over the past half-decade.
The Great Divide: A Peaceful Split
About a year after Ethereum's launch, a major hacking incident divided the community. The DAO (Decentralized Autonomous Organization), built on Ethereum, was hacked on June 17, 2016, resulting in the loss of approximately 3.7 million ETH. In response, Ethereum developers proposed a hard fork to revert the blockchain's state to before the attack, effectively invalidating the stolen funds and restoring users' assets.
A portion of the community opposed this move, arguing that it violated the immutable nature of blockchain technology. They believed the integrity of all transactions, including the hacked funds, should be preserved. When the hard fork was executed on July 20, 2016, the blockchain split into two: Ethereum (the new chain) and Ethereum Classic (the original chain that continued without the reversal).
CryptoKitties: The First Major DApp Stress Test
The first decentralized application (DApp) to gain widespread user adoption was CryptoKitties, a virtual cat collectibles game launched in November 2017. Its popularity was covered by major media outlets like the BBC and The New York Times. At its peak, some rare tokenized virtual cats were valued at as much as $200,000.
The massive transaction volume overwhelmed the Ethereum network, causing severe congestion and delays. On January 10, 2018, it set a record for the highest total daily transaction fees. The CryptoKitties frenzy highlighted the technical limitations of Ethereum's scalability.
Pushing the Limits: ICOs and DeFi
From 2017 onwards, Initial Coin Offerings (ICOs) expanded rapidly. According to data from ICObench, over 80% of ICOs used Ethereum to create and issue their tokens. During the peak of the ICO boom in 2018, Ethereum helped raise more than $7.8 billion for over a thousand projects.
The ICO trend demonstrated the vast potential of blockchain technology, even with its existing limitations. More recently, decentralized finance (DeFi) has emerged as the leading application trend on Ethereum. Today, over $4.3 billion is locked in various DeFi protocols.
Dominance in the DApp Ecosystem
Ethereum's vision has always been to become a "world computer." Since 2015, it has developed the Solidity programming language and token standards like ERC-20 and ERC-721. These innovations paved the way for other public blockchains such as Tron, EOS, and Tezos. However, Ethereum remains the most popular platform in terms of both users and number of DApps.
Despite this dominance, Ethereum's current infrastructure is not yet capable of handling data requests from billions of global users. Recognizing these technical limitations, founder Vitalik Buterin and developers have outlined the Ethereum 2.0 roadmap, with a full launch expected in the near future.
👉 Explore the latest blockchain innovations
The Long Road to Ethereum 2.0
The Ethereum 2.0 roadmap has undergone several iterations over the past five years. The original plan, set at the mainnet launch in July 2015, was to transition from the energy-intensive Proof-of-Work (PoW) consensus mechanism to a more efficient Proof-of-Stake (PoS) system. To encourage miners to transition gradually, developers implemented a "difficulty bomb" that progressively increases mining difficulty.
However, as the difficulty bomb has been repeatedly delayed, so too has the full rollout of Ethereum 2.0. The "Serenity" phase, initially scheduled for July of this year, has been postponed to November, though uncertainties remain. The final multi-client testnet, "Medalla," launched on August 4. If it runs smoothly for three months and all penetration tests reveal no critical risks, the official launch of Ethereum 2.0 may finally be on the horizon.
Frequently Asked Questions
What was The DAO hack?
The DAO was a decentralized autonomous organization built on Ethereum. In June 2016, a vulnerability in its code was exploited, leading to the theft of 3.7 million ETH. This event caused a community split and resulted in the hard fork that created Ethereum (ETH) and Ethereum Classic (ETC).
How did CryptoKitties affect Ethereum?
CryptoKitties was a popular DApp that allowed users to trade virtual cats. Its success caused unprecedented network congestion on Ethereum, highlighting scalability issues and driving development for better solutions.
What is the difference between Ethereum and Ethereum Classic?
Ethereum (ETH) is the chain that resulted from the hard fork after The DAO hack. Ethereum Classic (ETC) is the original chain that continued without reversing the hack. The two now operate as separate blockchains with different communities and development goals.
What is Ethereum 2.0?
Ethereum 2.0, also known as Eth2 or Serenity, is a major upgrade to the Ethereum blockchain. It aims to improve scalability, security, and sustainability by transitioning to Proof-of-Stake and implementing shard chains.
How will Ethereum 2.0 improve scalability?
Ethereum 2.0 introduces shard chains, which will allow the network to process many transactions in parallel. This, combined with Proof-of-Stake, is expected to significantly increase transaction throughput and reduce fees.
When will Ethereum 2.0 be fully launched?
The rollout is happening in phases. The final multi-client testnet is currently running, and if successful, the mainnet launch could happen in the near future. However, exact dates are subject to change based on testing outcomes.