This is similar to a game I played passionately at BAUT (The astronomical numbers game):
We count up from 1, mentioning a factoid (any factoid) that contains the number. Especially with the higher numbers, a link to the fact is appreciated. One number per post. Maybe this thread will meet the 1,000,000 thread somewhere 8)
I'll start with the first three for demonstration.
There is always (if things don't get messed up) 1 Pope of the Catholic church. [/b]