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