Block reward reduced from 6.25 BTC to 3.125 BTC. Occurred shortly after the approval of spot Bitcoin ETFs in the US, during a period of growing institutional interest.
DeFi Summer Begins
Bitcoin Pizza Day
Ronin Bridge Hack ($625M)
NFT Mania: Beeple's $69M Sale
Bitcoin Halving #1
"Bitcoin is a swarm of cyber hornets"