On this day in 1924, Simon & Schuster published the first crossword puzzle book.
On this day in 1930, the BBC reported there was no news, then played out with piano music.
On this day in 1946, the International Court of Justice held its inaugural meeting in The Hague, Netherlands.
And on this day in 1980, the Republic of Zimbabwe came into being. The Zimbabwe Dollar replaced the Rhodesian Dollar as the official currency.