If you guys wanna stick, I will be posting a few ideas about my next riddle here, so I can also get some feedback.
Happy to provide some feedback. I'll also deliberately not attempt to solve the next one (or at least that's what I'll claim when I get stuck on it 
) so someone else can win.BTW do you know those dates off the top of your head? I was thinking of a small project to make a "Bitcoin calendar" where people can see when was the time different events happened.
Those two I did happen to know off the top of my head, but I'm sure there are many other important dates I don't know. The only other notable one which occurs immediately is the second halving, which was in July 2016. I'm sure there are plenty of resources out there which collect historical dates or create a bitcoin timeline which you could pull data from.