The occurrences for “the halvening” events of Bitcoin are as such; 1st bitcoin halving: November 28, 2012 / 2nd bitcoin halving: July 9, 2016 / 3rd bitcoin halving: May 11, 2020 and next to occur around Feb 2024 to Jun 2024.
■ Additional details regarding bitcoin halving are found at https://cryptocounter.com/bitcoin-halving
■ For a list of reputable exchanges to buy or sell bitcoin and/or cryptocurrency (if you are interested) go to: https://cryptocounter.com/crypto-partners It is recommended that you buy cryptocurrency from established exchanges, some of the more reputable exchanges are detailed therein including their connection link.