Public holidays
1820, USA, Wisconsin
| # | Date | Public holiday |
|---|---|---|
| 1 | Saturday, January 1, 1820 | New Year's Day |
| 2 | Monday, January 17, 1820 | Martin Luther King Day |
| 3 | Tuesday, February 15, 1820 | Mardi gras day/Susan B. Anthony Day |
| 4 | Monday, May 29, 1820 | Memorial Day |
| 5 | Monday, June 19, 1820 | Juneteenth National Independence Day |
| 6 | Tuesday, July 4, 1820 | Independence Day |
| 7 | Monday, September 4, 1820 | Labor Day |
| 8 | Monday, October 9, 1820 | Columbus Day |
| 9 | Tuesday, November 7, 1820 | Election Day |
| 10 | Thursday, November 23, 1820 | Thanksgiving |
| 11 | Sunday, December 24, 1820 | Christmas Eve |
| 12 | Monday, December 25, 1820 | Christmas |
| 13 | Sunday, December 31, 1820 | New Year's Eve |