Public holidays
1866, USA, Indiana
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, January 1, 1866 | New Year's Day |
| Friday, March 30, 1866 | César Chávez Day (observance)/Good Friday | |
| 2 | Wednesday, May 30, 1866 | Memorial Day |
| 3 | Wednesday, July 4, 1866 | Independence Day |
| 4 | Monday, September 3, 1866 | Labor Day |
| 5 | Tuesday, November 6, 1866 | Election Day |
| 6 | Thursday, November 29, 1866 | Thanksgiving |
| 7 | Friday, November 30, 1866 | Black Friday |
| 8 | Monday, December 24, 1866 | Christmas Eve |
| 9 | Tuesday, December 25, 1866 | Christmas |