Solidity Tutorial

What is solidity in a blockchain? Solidity is a contract-oriented,   high level programming language.Solidity designed to target Ethereum Virtual Machine (EVM). What is Smart Contracts in blockchain? A smart contract is computer protocol business logic.

History of Blockchain

 Although blockchain may be a new technology, it already boasts an upscale and interesting history. the subsequent may be a brief timeline of a number of the foremost important and notable events within the development of blockchain.

 Satoshi Nakamoto, a pseudonym for an individual or group, publishes “Bitcoin: A Peer to see Electronic Cash System."


 the primary successful Bitcoin (BTC) transaction occurs between scientist Hal Finney and therefore the mysterious Satoshi Nakamoto.


 Florida-based programmer Laszlo Hanycez completes the primary ever purchase using Bitcoin — two Papa John’s pizzas. Hanycez transferred 10,000 BTC’s, worth about $60 at the time. Today it's worth $80 million.
 The market cap of Bitcoin officially exceeds $1 million.


 1 BTC = $1USD, giving the cryptocurrency parity with the US dollar.
 Electronic Frontier Foundation, Wikileaks and other organizations start accepting Bitcoin as donations.


 Blockchain and cryptocurrency are mentioned in popular television shows just like the Good Wife, injecting blockchain into popular culture .
 Bitcoin Magazine launched by early Bitcoin developer Vitalik Buterin.


 BTC market cap surpassed $1 billion.
 Bitcoin reached $100/BTC for first time.
 Buterin publishes “Ethereum Project" paper suggesting that blockchain has other possibilities besides Bitcoin (e.g., smart contracts).


 Gaming company Zynga, The D Las Vegas Hotel and all start accepting Bitcoin as payment.
 Buterin’s Ethereum Project is crowdfunded via an Initial Coin Offering (ICO) raising over $18 million in BTC and opening up new avenues for blockchain.
 R3, a gaggle of over 200 blockchain firms, is made to get new ways blockchain are often implemented in technology.
 PayPal announces Bitcoin integration.


 Number of merchants accepting BTC exceeds 100,000.
 NASDAQ and San-Francisco blockchain company Chain team to check the technology for trading shares privately companies.


 Tech giant IBM announces a blockchain strategy for cloud-based business solutions.
 Government of Japan recognizes the legitimacy of blockchain and cryptocurrencies.


 Bitcoin reaches $1,000/BTC for first time.
 Cryptocurrency market cap reaches $150 billion.
 JP Morgan CEO Jamie Dimon says he believes in blockchain as a future technology, giving the ledger system a vote-of-confidence from Wall Street.
 Bitcoin reaches its all-time high at $19,783.21/BTC.
 Dubai announces its government are going to be blockchain-powered by 2020.


 Facebook commits to starting a blockchain group and also hints at the likelihood of making its own cryptocurrency.
 IBM develops a blockchain-based banking platform with large banks like Citi and Barclays signing on.


 China’s President Ji Xinping publicly embraces blockchain as China’s financial institution announces it's performing on its own cryptocurrency
 Twitter & Square CEO Jack Dorsey announces that Square are going to be hiring blockchain engineers to figure on the company’s future crypto plans
 The ny stock market (NYSE) announces the creation of Bakkt - a digital wallet company that has crypto trading


 Bitcoin almost reaches $30,000 by the top of 2020
 PayPal announces it'll allow users to shop for , sell and hold cryptocurrencies
 The Bahamas becomes the world’s first country to launch its financial institution digital currency, fittingly referred to as the “Sand Dollar”
 Blockchain becomes a key player within the fight against COVID-19, mainly for securely storing medical research data and patient information


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