Probably it's not the exact date on which "Detective Comics" #27 was published, back in May 1939 - the very first appearance of my all-time favourite comic book super hero, Batman. But because of the number of the issue my bro decided that we should celebrate today :)
When I got back from work he had already turned the living room into a bat-cave and after dinner we watched a documentary on Batman's history, followed by one of my favourite episodes of "Batman: The Animated Series" - Beware The Gray Ghost! And then bro blew the candles and we had a piece of bat-cake :) (the photos from our celebration will be soon up on Realm of the Bat )
Happy 70th anniversary, Batman!
Thank you, Bob!