date of 1st bitcoin halving

The 1st halving event occurred on November 28, 2012 after 210,000 blocks had been mined. The block reward decreased from 50 to 25 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