The Bitcoin halving will programmatically decrease the number of new bitcoin generated per block. This means that the daily incoming supply of bitcoin is reduced from about 1,800 to 900 BTC.

Right now, a Bitcoin miner reward is 12.5 BTC per new block. This May, the block reward will halve to give miners 6.25 BTC per validated block.

Only two Bitcoin halving events have ever occurred (2012 & 2016). At the time of the first halving event, the price of Bitcoin was €11 and at the time of the second halving event, it was €585.