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Bitcoin Halving Countdown and History

Bitcoin Halving 2012

The Bitcoin halving of Nov 28, 2012 cut the block subsidy from 50 to 25 BTC per block, taking annual issuance from about 2,628,000 to about 1,314,000 BTC. Bitcoin closed that week at $13. The confirmed cycle peak after it was Dec 16, 2017 at $19,641, 1844 days later.

Fact Sheet
Date
Nov 28, 2012
Block subsidy before
50 BTC
Block subsidy after
25 BTC
Annual issuance before
about 2,628,000 BTC
Annual issuance after
about 1,314,000 BTC
Close that week
$13
Confirmed peak after
Dec 16, 2017, 1844 days later