Ethereum: The Blockchain You Can Program|
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Ethereum at a Glance
Created
2015 by Vitalik Buterin
Purpose
Smart contracts & dApps
Currency
Ether (ETH)
Symbol
ETH
How It Works
Ethereum is a blockchain platform that runs smart contracts — self-executing programs that automatically enforce agreements when conditions are met. This enables decentralized applications (dApps) to operate without centralized control.
The Engine of Web3
While Bitcoin is primarily digital money, Ethereum is a programmable platform. Developers use it to build decentralized finance (DeFi) protocols, NFT marketplaces, games, social networks, and more — all without traditional intermediaries.
Powering the Network
Ether (ETH) is the cryptocurrency that powers the entire Ethereum network. It's used to pay transaction fees (called "gas") which fuel the execution of smart contracts and dApps. ETH also serves as a reward for validators who help secure the network.
Ethereum vs Bitcoin: Key Differences
Bitcoin
Digital currency
Store of value
21 million supply cap
~10 minute blocks
Simple transactions
Proof of Work (mining)
Ethereum
Programmable platform
Smart contracts & dApps
No fixed supply
~12 second blocks
Complex programmable logic
Proof of Stake (staking)
Why People Use Ethereum
Smart Contracts
Automated agreements that execute without intermediaries. Code is law — no lawyers needed.
Decentralized Finance (DeFi)
Access lending, borrowing, trading, and earning interest without traditional banks.
NFTs & Digital Ownership
Create, buy, and sell unique digital assets like art, music, collectibles, and virtual real estate.
Decentralized Applications
Build and use applications that no single entity controls—from games to social networks.
Fast Transactions
Settle transactions in seconds, not minutes. Perfect for modern applications.
Global Developer Network
Thousands of developers worldwide continuously improve and expand the Ethereum ecosystem.
A Brief History of Ethereum
2013
19-year-old programmer Vitalik Buterin proposes Ethereum after seeing Bitcoin's limitations.
2015
Ethereum mainnet launches. The era of programmable blockchains begins.
2016-2017
Early dApps and ICOs launch on Ethereum, sparking a token-funding boom.
2020
DeFi Summer. Decentralized finance protocols explode in popularity and value.
2022
Ethereum switches from Proof of Work to Proof of Stake, cutting energy use by 99.9%.
Present
Ethereum powers trillions of dollars in DeFi, millions of NFTs, and thousands of dApps.
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