Public holidays
1622, USA, District of Columbia
| # | Date | Public holiday |
|---|---|---|
| 1 | Saturday, January 1, 1622 | New Year's Day |
| 2 | Monday, January 17, 1622 | Martin Luther King Day |
| 3 | Monday, February 21, 1622 | Washington's Birthday |
| Friday, April 15, 1622 | Emancipation Day (observance) | |
| 4 | Saturday, April 16, 1622 | Emancipation Day |
| 5 | Monday, May 30, 1622 | Memorial Day |
| 6 | Sunday, June 19, 1622 | Juneteenth National Independence Day |
| Monday, June 20, 1622 | Juneteenth (observance) | |
| 7 | Monday, July 4, 1622 | Independence Day |
| 8 | Monday, September 5, 1622 | Labor Day |
| 9 | Monday, October 10, 1622 | Columbus Day |
| 10 | Friday, November 11, 1622 | Veterans Day |
| 11 | Thursday, November 24, 1622 | Thanksgiving |
| 12 | Sunday, December 25, 1622 | Christmas |
| Monday, December 26, 1622 | Christmas (observance) |