16th May 1770 – 14-year old Marie Antoinette married 15-year-old Louis-Auguste who later became king of France. 1836 – Edgar Allan Poe married his 13-year-old cousin Virginia. 1920 – Pope Benedict XV canonized Joan of Arc as a saint. 1960 - The first working laser was demonstrated by Theodore Maiman at Hughes Research Laboratories. (But […]

18th April 1506 – The cornerstone of the current St. Peter's Basilica was laid. 1909 – Joan of Arc was beatified in Rome. 1783 – Fighting ceased in the American Revolution, eight years since it began. 1924 – Simon & Schuster published the first crossword puzzle book. 1945 – Over 1,000 allied bombers attacked the […]