(CBS) — On this day in history, April 15, 1912, the Titanic sank.
Believed to be unsinkable, the craft went down in the North Atlantic Ocean after hitting an iceberg that cracked its hull.
The ship sank completely within two and a half hours, but many passengers on board did not know that the ship was going under because only a slight tremble was felt upon impact.
Of an estimated 2,223 passengers and crew aboard the ship,1,517 people lost their lives.
Of the more than 700 people who survived, most were women and children who were saved first. Many more people would have survived but there were only enough lifeboats for half the passengers.
Captain Edward Smith went down with his ship.