Public holidays
1506, USA, South Dakota
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1506 | New Year's Day |
| 2 | Monday, 15 January 1506 | Martin Luther King Day |
| 3 | Monday, 19 February 1506 | Washington's Birthday |
| 4 | Monday, 28 May 1506 | Memorial Day |
| 5 | Wednesday, 4 July 1506 | Independence Day |
| 6 | Monday, 3 September 1506 | Labor Day |
| 7 | Sunday, 11 November 1506 | Veterans Day |
| Monday, 12 November 1506 | Veterans Day (observance) | |
| 8 | Thursday, 22 November 1506 | Thanksgiving |
| 9 | Tuesday, 25 December 1506 | Christmas |