Bitcoin is 10 years old today.Bitcoin whitepaper introduced the concept of using digital ones and zeros as a medium of exchange. It was a little different than Ecash or Hashcash, in that it had a decentralised ledger. So 10 years ago the block-chain concept was created. The first Open Source software was released on Jan 9, 2009 and Hal Finney downloaded it and received 10 Bitcoins from Satoshi. Now, for the last 10 years, a new Bitcoin block has been created every 10 minutes. In the early days every Bitcoin miner who found the right nonce was rewarded with 50 Bitcoins (BTC) but now days there is only a 12.5 BTC reward. Over the last 10 years the software has been improved. Segwit was added to the code 400 days ago and now a Bitcoin transfer can be under 180 bytes. Adding Segwit also brought into existence Bcash. It has taken the crypto community 10 years to realise that other alt coins can't replace Bitcoin if Bitcoin software can barely handle that function. Decentralisation and a store of value is what makes this software GREAT.