3 awesome facts about Batman
1) Batman is named after two historical people: Scottish Patriot King Bruce I of Scottland (he led the wars of Scottish independence) and Brigaider General Anthoney Wayne (who is a hero in the American Revoloutionary war)
2) Batman originally (sketched by Bob Kane) wore a red suit rather than a black suit with his bat wig like cape which, drew inspiration from Da Vinci's designs on the ornithopter.
3) Arkham Asylum is based on the Sanitorium in a fictional city called Arkham, this fictional city is based in H.P. Lovercraft's novels. The Sanitorium in these novels were based on the Danvers State Hospital, which was a mental asylum in Massachusetts.