Public holidays
1880, USA, Wisconsin
| # | Date | Public holiday |
|---|---|---|
| 1 | Thursday, January 1, 1880 | New Year's Day |
| 2 | Monday, January 19, 1880 | Martin Luther King Day |
| 3 | Sunday, February 15, 1880 | Susan B. Anthony Day |
| Monday, February 16, 1880 | Washington's Birthday/Susan B. Anthony Day (observance) | |
| 4 | Monday, May 31, 1880 | Memorial Day |
| Friday, June 18, 1880 | Juneteenth (observance) | |
| 5 | Saturday, June 19, 1880 | Juneteenth National Independence Day |
| 6 | Sunday, July 4, 1880 | Independence Day |
| Monday, July 5, 1880 | Independence Day (observance) | |
| 7 | Monday, September 6, 1880 | Labor Day |
| 8 | Monday, October 11, 1880 | Columbus Day |
| 9 | Tuesday, November 2, 1880 | Election Day |
| 10 | Thursday, November 25, 1880 | Thanksgiving |
| Friday, December 24, 1880 | Christmas (observance)/Christmas Eve | |
| 11 | Saturday, December 25, 1880 | Christmas |
| Friday, December 31, 1880 | New Year's Day (observance) |