Congress changed the day income taxes are due from March 15 to April 15 in 1955.
Saturday.
April 15th 1912
The Titanic sunk on the 15th of April 1912.
The 'Titanic' was discovered by Robert Ballard on September 1, 1985.
The Titanic sunk at about 2:15 am on the 15th of April, 1912
15th of April 1912 was a Monday.
April 15th 2010 was a Thursday.
15th April 1985 was a Monday.
April 15th, 1913 was a Thursday.
April 15th, 1947 fell on a Tuesday.
April 15th, 2001 fell on a Sunday.
Friday.
It was a Wednesday.
It was a Sunday.
It was a Saturday.
For 2014, April 15th will fall on a Tuesday.
Usually it is April 15th. The exception is when April 15th falls on a weekend (as it did this year in 2011), in which case the deadline to file taxes is extended to the following Monday.