When we are talking about bitcoin mining terminologies i expect to see more than what am seeing here as presented by OP in this context because this is very common and the usual words we are used to aside that this topic has been countless times discussed already on the forum and from the threads that were referenced to, you could discover a big number of people that have made alot of efforts in discussing related matters, you could be a newbie quite alright but there's more to give and discover about, additionally, you could as well always make use of the search button to know about some other aspects that have already been discussed on the forum before posting about them.
I was also expecting something new and unique as the OP said in title, "Facts". Well, after reading his post i can say one thing for sure, he is just visual or Kinesthetic learner. Because he just learnt the art of mining and understood the basic functioning of mining like how the whole thing happens.
He obviously did not read about the basic architecture of Blockchain and of a single block. And to prepare what he learnt he just made a post here. Which is not bad. But also not very useful and i thought the links provided by the first commenter will be useful but they were only related to BTC only and i found nothing special and unique Facts about BTC which would contribute more. But still if OP find them useful then i should ignore that reply. (No offense).