Appendix C: Major Events Timeline

Stage One: The Pre-Dawn Era (1970s - 2008)

• 1976: Whitfield Diffie and Martin Hellman published the paper "New Directions in Cryptography," proposing the concept of public-key cryptography.
• 1977: Ron Rivest, Adi Shamir, and Leonard Adleman proposed the RSA encryption algorithm, making public-key cryptography practical.
• 1982: David Chaum introduced the concepts of eCash (electronic cash) and blind signatures.
• 1990: David Chaum founded DigiCash company.
• 1993: Eric Hughes published "A Cypherpunk's Manifesto."
• 1994: Nick Szabo first proposed the concept of "smart contracts."
• 1997: Adam Back invented Hashcash, the predecessor to Proof of Work (PoW).
• 1998: Wei Dai released the b-money concept.
• 1998: Nick Szabo designed the Bit Gold system.
• 1998: DigiCash company declared bankruptcy.

Stage Two: Bitcoin's Birth and Early Development (2008 - 2012)

• 2008.10.31: Satoshi Nakamoto published the Bitcoin whitepaper on the cryptography mailing list.
• 2009.01.03: Satoshi Nakamoto mined Bitcoin's genesis block, officially launching the Bitcoin network.
• 2009.01.12: The first Bitcoin transaction in history occurred, with Satoshi Nakamoto sending 10 bitcoins to Hal Finney.
• 2010.05.22: Laszlo Hanyecz purchased two pizzas with 10,000 bitcoins, known as "Bitcoin Pizza Day," marking Bitcoin's first real-world price discovery.
• 2010.07: Mt. Gox exchange was established.
• 2010.12: Satoshi Nakamoto posted his last message in the community before gradually fading away and disappearing.
• 2011.02: Bitcoin price reached $1 for the first time.
• 2011.06: WikiLeaks began accepting Bitcoin donations.
• 2011.10: Litecoin was released, becoming one of Bitcoin's earliest competitors.
• 2012.11.28: The first Bitcoin halving occurred at block 210,000, cutting the block subsidy from 50 BTC to 25 BTC and demonstrating that the protocol's monetary schedule would execute exactly as written.

Stage Three: Ethereum and Smart Contract Era (2013 - 2016)

• 2013.11: Vitalik Buterin published the Ethereum whitepaper.
• 2014.02: Mt. Gox exchange declared bankruptcy due to hacking attacks, triggering a severe market crisis.
• 2014.07: The Ethereum project completed its crowdfunding through ICO, raising over $18 million.
• 2015.07.30: Ethereum mainnet "Frontier" version officially launched.
• 2016.06: The DAO, an Ethereum-based crowdfunding project, was attacked, resulting in the theft of approximately $50 million worth of ETH.
• 2016.07: To recover The DAO losses, the Ethereum community voted to implement a hard fork, causing it to split into Ethereum (ETH) and Ethereum Classic (ETC).
• 2016.07.09: The second Bitcoin halving reduced the block subsidy from 25 BTC to 12.5 BTC.

Stage Four: ICO Boom and Regulatory Awakening (2017 - 2018)

• 2017: The ICO (Initial Coin Offering) phenomenon exploded, with annual funding exceeding $5 billion, as the cryptocurrency market entered a frenzied bull run.
• 2017.08.01: Bitcoin underwent a hard fork, giving birth to Bitcoin Cash (BCH).
• 2017.09.04: The People's Bank of China and seven other ministries jointly issued an announcement, completely banning ICO and cryptocurrency exchange operations.
• 2017.12: Bitcoin price reached a historic high of nearly $20,000.
• 2017.12: CryptoKitties game launched, attracting massive attention and temporarily congesting the Ethereum network.
• 2018: Cryptocurrency market bubble burst, entering a "crypto winter" lasting over a year, with most token prices falling more than 90%.

Stage Five: Rise of DeFi and NFTs (2019 - 2021)

• 2020.05.11: The third Bitcoin halving reduced the block subsidy from 12.5 BTC to 6.25 BTC, arriving weeks after the pandemic market crash.
• 2020.06: Compound protocol launched "liquidity mining," igniting "DeFi Summer."
• 2020: Decentralized exchanges (DEX) like Uniswap experienced explosive growth in trading volume and total value locked (TVL).
• 2020.12: Public companies like MicroStrategy and Tesla began adopting Bitcoin as corporate treasury assets.
• 2021.03: Digital artist Beeple's NFT artwork sold for $69.3 million at Christie's auction house, bringing NFTs into mainstream consciousness.
• 2021.09: The Republic of El Salvador officially adopted Bitcoin as legal tender, becoming the first sovereign nation to do so.
• 2021.11: Bitcoin price reached a new all-time high of approximately $69,000.

Stage Six: Web3 Concept Popularization and Mainstream Adoption (2021 - 2023)

• 2021.10: Facebook announced its rebranding to Meta, fully betting on the metaverse and igniting related concepts.
• 2022.05: Algorithmic stablecoin project Terra (UST) and its token LUNA collapsed, triggering market chain reactions and bankrupting multiple crypto institutions.
• 2022.09.15: Ethereum completed "The Merge," officially transitioning its consensus mechanism from Proof of Work (PoW) to Proof of Stake (PoS).
• 2022.11: FTX, the world's second-largest cryptocurrency exchange, declared bankruptcy, founder Sam Bankman-Fried was arrested, severely damaging industry credibility.
• 2023.01: The Ordinals protocol launched, allowing arbitrary data to be inscribed onto individual satoshis and opening a Bitcoin-native NFT market. The BRC-20 token standard followed in March.
• 2023.04.12: The Shapella upgrade enabled withdrawals of staked ETH, completing Ethereum's transition to proof of stake.
• 2023.06: The EU's Markets in Crypto-Assets Regulation (MiCA) officially entered into force, becoming the world's first comprehensive regulatory framework for crypto assets.
• 2023.06: EigenLayer launched the first stage of its mainnet, introducing "restaking" and the idea that staked ETH could secure additional services.

Stage Seven: Institutional Adoption and the ETF Era (2024 - 2025)

• 2024.01: The U.S. Securities and Exchange Commission (SEC) officially approved the first Bitcoin spot ETFs, which began trading on January 11.
• 2024.03.13: Ethereum's Dencun upgrade introduced blob transactions (EIP-4844), cutting Layer 2 transaction costs by an order of magnitude.
• 2024.04.20: The fourth Bitcoin halving occurred at block 840,000, reducing the block subsidy from 6.25 BTC to 3.125 BTC.
• 2024.07.23: Spot Ether ETFs began trading in the United States.
• 2024.12: Bitcoin traded above $100,000 for the first time; MiCA became fully applicable across the EU at the end of the month.
• 2025.02.21: Bybit lost roughly $1.5 billion to North Korea-linked attackers, the largest cryptocurrency theft on record.
• 2025.03.06: Executive Order 14233 established the U.S. Strategic Bitcoin Reserve and Digital Asset Stockpile, capitalized with forfeited government holdings.
• 2025.05.07: Ethereum's Pectra upgrade shipped, raising validator limits and bringing account abstraction features to mainnet.
• 2025.07.18: The GENIUS Act was signed into law, creating the first U.S. federal framework for payment stablecoins. The CLARITY Act market structure bill passed the House the previous day and moved to the Senate.
• 2025.08.24: Ether reached an all-time high near $4,950, surpassing its November 2021 record.
• 2025.10.06: Bitcoin peaked at roughly $126,200. Four days later, a record liquidation cascade wiped out more than $19 billion in leveraged positions within 24 hours.
• 2025.12.03: Ethereum's Fusaka upgrade activated PeerDAS, allowing validators to sample blob data rather than download all of it.

Stage Eight: Consolidation and the Search for a Floor (2026)

• 2026.01.07: The second Blob Parameter Only fork raised Ethereum's blob targets again, continuing the post-Fusaka scaling schedule.
• 2026.02: A sharp sell-off drove Bitcoin down roughly 18% in a single session, its worst single-day decline since the FTX collapse in November 2022, and the market entered a prolonged drawdown.
• 2026.04: Exploits at Drift Protocol and KelpDAO, each costing close to $290 million, dominated the year's security losses. Both stemmed from operational and infrastructure compromises rather than smart contract bugs.
• 2026.07.01: MiCA's transitional grandfathering period ended, requiring every crypto-asset service provider operating in the EU to hold a full authorization.
• 2026.07: The CLARITY Act remained stalled in the Senate without a floor vote, leaving U.S. market structure rules unresolved.
• 2026 H2: Ethereum's Glamsterdam upgrade, headlined by enshrined proposer-builder separation (EIP-7732) and block-level access lists (EIP-7928), is targeted for mainnet activation.
• 2024 - 2026: Layer 2 rollups matured into the default execution environment for Ethereum, while real-world asset tokenization grew into a multi-billion-dollar on-chain market alongside a stablecoin supply of roughly $290-300 billion.