what is a bitcoin halving

The 5th halving event is expected to occur on April 20, 2028 once 1.05M blocks have been mined. The block reward will decrease from 3.125 to 1.5625 coins per block.

HALVING # DATE HEIGHT REWARD
0
1/3/2009
0
50
1
11/28/2012
210000
25
2
7/9/2016
420000
12.5
3
5/11/2020
630000
6.25
4
4/20/2024
840000
3.125
5
4/20/2028
1050000
1.5625