TIL - After the fall of Berlin in WW2, so many rapes occurred that over 100,00 births in the city were believed to be the result of rape.

http://books.google.com/books?id=fVO1b9-KvdYC&pg=PA91&dq=Berlin+%22mass+rape%22+history+estimate+thousands&hl=en&sa=X&ei=szkhU5SRD46sqwHF7YHIAQ&ved=0CDsQ6AEwAQ#v=onepage&q=Berlin%20%22mass%20rape%22%20history%20estimate%20thousands&f=false