Hello guys, has it ever happened that some pool had exceeded 51% of Bitcoin hash-rate? I tried to find some information on the Internet, but there are many articles which are not in the contrast so I am not able to find out which of them are correct and which are just hoaxes. Thank you
Only on Bitcoin Cash.
Bitcoin Gold had one too. The coin that claimed it was going to be ASIC-resistant. I see that worked out well for them.

Also Feathercoin and EthereumClassic. Probably a few others no one cares about.
Basically every chain except Bitcoin Ethereum and Litecoin was 51% attacked in the past, but I prefer to ridicule BCash most!