Public holidays
1778, USA, Oklahoma
| # | Date | Public holiday |
|---|---|---|
| 1 | Thursday, January 1, 1778 | New Year's Day |
| 2 | Sunday, February 22, 1778 | Washington's Birthday |
| 3 | Saturday, May 30, 1778 | Memorial Day |
| Friday, July 3, 1778 | Independence Day (observance) | |
| 4 | Saturday, July 4, 1778 | Independence Day |
| 5 | Monday, September 7, 1778 | Labor Day |
| 6 | Thursday, December 24, 1778 | Christmas Eve |
| 7 | Friday, December 25, 1778 | Christmas |