Batmanpedia:Shocking Facts about Batman

' The silly origin of Gotham City, Batman's first werid look, and more '

1. Bruce Wayne's Name Comes from Two Real Heroes
Batman’s secret identity, Bruce Wayne, was derived from two historical figures. Robert the Bruce, a Scottish national hero:  And Mad Anthony Wayne, a hero of the American Revolution:'''

2. Batman’s Screen Name
Batman’s online screen name is JonDoe297.

3. The Batcave Debuted on TV
A 1943 TV serial called The Batman introduced the concept of the Batcave, not to mention a skinny Alfred Pennyworth.

4. Batman Beat Darkseid… Twice!
'Darkseid is essentially the end boss of the DC Universe, an evil god who can go toe-to-toe with Superman himself. Even though Batman is a mere mortal, he's bested the villain on two separate occasions.  The first time, Darkseid blasted him with his Omega Sanction beams, so Batman shot Darkseid with a god-killing gun. Darkseid's beams sent Batman back in time, but Batman eventually returned to the present and thwarted Darkseid's plans.  The second time, Batman put on the Hellbat armor designed by the Justice League, giving him immense strength at the expense of his own life-force. He was able to brawl with Darkseid long enough to complete his mission, rescuing his son Damian Wayne.'

5. There’s a Batman College Course
'There’s a real course called The Science of Batman at the University of Victoria in Canada. The course description reads: “The extreme range of adaptability of the human body explored through the life of the Caped Crusader.”'