Can you tell me what crypto coins were before BTC? I wasn't aware of them... I thought that the Bitcoin started it all.
Bitcoin is a product of previous digital money that has been created decades of years before the existence of bitcoin. And as far as I know, it all started from Adam Back's
Hashcash to Wei Dai's
bmoney up until to Nick Szabo's
BitgoldSatoshi combined combined these founding pieces of technology that results to an innovated cryptographic based currency called bitcoin.
Full details here -
https://cacm.acm.org/magazines/2017/12/223058-bitcoins-academic-pedigree/fulltext?mobile=falseAlthough there have been attempts at online money before Bitcoin, bitcoin is the first decentralized cryptocurrency to use the blockchain principle, and the first peer-to-peer payment system to completely eliminate double spending problem without the need for a centralized supervisor.