Public holidays
1667, USA, District of Columbia
| # | Date | Public holiday |
|---|---|---|
| 1 | Saturday, January 1, 1667 | New Year's Day |
| 2 | Tuesday, February 22, 1667 | Washington's Birthday/Mardi gras day |
| Friday, April 15, 1667 | Emancipation Day (observance) | |
| 3 | Saturday, April 16, 1667 | Emancipation Day |
| 4 | Monday, May 30, 1667 | Memorial Day |
| 5 | Monday, July 4, 1667 | Independence Day |
| 6 | Monday, September 5, 1667 | Labor Day |
| 7 | Sunday, December 25, 1667 | Christmas |
| Monday, December 26, 1667 | Christmas (observance) |