A look back at the week in history
April 11, 1814 His army broken, French Emperor Napoleon Bonaparte is exiled to Elba.
April 12, 1861 Confederate forces fire on Fort Sumter in South Carolina, starting the Civil War.
April 13, 1970 An oxygen tank fails aboard Apollo 13, as astronaut James Lovell reports: "Houston, we've had a problem." The crew would return to Earth safely.
April 14, 1865 President Abraham Lincoln is assassinated by John Wilkes Booth in Washington.
April 15, 1912 The Titanic, having struck an iceberg in the North Atlantic, sinks, killing 1,517 people.