April 15, the day income taxes are due to the IRS, is the day the Titanic sank in the North Atlantic in the year 1912. It had struck an iceberg the night before, just five days after departing from England on its maiden voyage. Over 1,500 lost their lives. Also on April 15, President Abraham Lincoln died in 1865. He had been shot the night before in Ford's Theater by John Wilkes Booth, just five days after the Civil War ended. Over a half-million lost their lives. Lincoln stated: "I made a solemn vow before God, that if General Lee were driven back from Pennsylvania, I would crown the result by the declaration of freedom to the slaves."