two events occurred:
1. The “Unsinkable” Titanic did sink.
The RMS Titanic was a British registered four funnelled ocean liner built for the transatlantic passenger and mail service between Southampton and New York.
Constructed at the Harland and Wolff shipyard in Belfast, Ireland Titanic was, on her maiden voyage, the largest vessel afloat.
On April 10th 1912 the Titanic sailed from Southampton with 2,200 passengers and crew, four days later the Titanic collided with an iceberg and sank. 1500 people died and 700 survived.
You can find many good sites about the ship, the people, and this tragic event.
2. Robert Doisneau was born. Although he passed away a few years ago, in ’91, Robert Doisneau is considered one of the greatest photographers of all time. While the wikipedia page on Doisneau offers more information, this page from the UK’s The Daily Mail, offers a few of his most famous works: