September 1 - 1985 - The Titanic was found by Dr. Robert Ballard and Jean Louis Michel in a joint U.S. and French expedition. The wreck site is located 729 kilometres southeast of the Newfoundland and Labrador, Canada, coast.
September 2 - 1938 - The first railroad car to be equipped with fluorescent lighting was put into operation on the New York Central railroad.
(Two railway lines ran through the town I grew up in. The New York Central, later Penn Central, and the Chesapeake & Ohio. Two American owned and operated railways, traversing southern Ontario, Canada. The two Canadian railways, Canadian Pacific and Canadian National were not near us.)
2nd Sept 1666, the Great Fire of London started on the premises of a baker in Pudding Lane.
A monument to the fire was designed by Sir Christopher Wren. It stands close to where the great fire started. I have noticed that the Monument has been reopened to the public after restoration works were completed. This links to pages about the Monument. http://www.themonument.info/history/
September 3 - 1976 - The U.S. spacecraft Viking 2 landed on Mars. The unmanned spacecraft took the first close-up, color photos of the planet's surface.