Public holidays
1666, USA, Alabama
| # | Date | Public holiday |
|---|---|---|
| 1 | Friday, 1 January 1666 | New Year's Day |
| 2 | Monday, 22 February 1666 | Washington's Birthday |
| 3 | Tuesday, 2 March 1666 | Mardi gras day |
| 4 | Monday, 26 April 1666 | Confederate Memorial Day |
| 5 | Sunday, 30 May 1666 | Memorial Day |
| 6 | Monday, 7 June 1666 | Jefferson Davis Day |
| 7 | Sunday, 4 July 1666 | Independence Day |
| Monday, 5 July 1666 | Independence Day (observance) | |
| 8 | Monday, 6 September 1666 | Labor Day |
| Friday, 24 December 1666 | Christmas (observance)/Christmas Eve | |
| 9 | Saturday, 25 December 1666 | Christmas |
| 10 | Sunday, 26 December 1666 | December 26 |
| Friday, 31 December 1666 | New Year's Day (observance) |