28/07/2020: Ethereum 2.0 Testnet Launch
The Beacon Chain, the first phase of Ethereum 2.0, goes live on a public testnet, marking a significant step towards the transition to a proof-of-stake consensus mechanism.
20/07/2017: Ethereum Hard Forks: Byzantium
The Ethereum network undergoes a hard fork upgrade named Byzantium, implementing various improvements to enhance scalability, privacy, and security.
17/06/2016: The DAO Hack
The Decentralized Autonomous Organization (DAO), built on the Ethereum platform, suffers a major security breach, resulting in the theft of approximately 3.6 million ETH tokens.
30/07/2015: Ethereum Mainnet Launched
The Ethereum mainnet is released, enabling developers around the world to build and deploy decentralized applications on the Ethereum blockchain.
06/05/2015: Pegged to the euro
The Bulgarian Lev officially became a currency pegged to the euro, maintaining a fixed exchange rate, on May 6, 2015.
30/07/2013: Ethereum Whitepaper Published
Vitalik Buterin publishes the Ethereum whitepaper, outlining a new blockchain platform designed to support decentralized applications and smart contracts.
03/01/2009: Bitcoin Genesis Block Created
The first block of the Bitcoin blockchain, known as the Genesis Block, is mined by Satoshi Nakamoto, marking the birth of the Bitcoin network.
31/10/2008: Bitcoin Whitepaper Published
Satoshi Nakamoto releases a whitepaper titled 'Bitcoin: A Peer-to-Peer Electronic Cash System,' introducing the concept of a decentralized digital currency.
01/01/2002: Replacement of notes and coins
New series of notes and coins for the Bulgarian Lev were introduced, replacing the previous designs on January 1, 2002.
01/07/1999: Currency board arrangement
Bulgaria implemented a currency board arrangement, fixing the Bulgarian Lev to the euro at a rate of 1.95583 on July 1, 1999.
15/09/1962: Introduction of the New Lev
The New Lev was introduced as a new currency in Bulgaria, replacing the Lev A, on September 15, 1962.
01/12/1952: Lev replaced by Lev A
The Bulgarian Lev was replaced by a new currency named Lev A on December 1, 1952 as a result of currency reform.
14/10/1923: Hyperinflation
Bulgaria experienced severe hyperinflation, causing the value of the Lev currency to plummet during the period from 1923 to 1924.
01/04/1881: Introduction of the Lev
The Bulgarian Lev currency was introduced as the official currency of Bulgaria on April 1, 1881.