Wow those are definitely some interesting facts. Do you think one person complied all of them or was it done by a group of people. It just seems like a lot of research and number crunching for one person to do on their own. Or did you do it? Consider me even more impressed if you did!
I thought they were compiled, but based on his comment, looks like @flauwy might have been the person to do all the math on his own!
I used this tool: http://www.gematrinator.com/calculator/datecalculator.php
I did the number research and it took me less than ten minutes. If you know how this works, it is very easy.
http://www.gematrinator.com/calculator/datecalculator.php