Public holidays
1857, USA, California
| # | Date | Public holiday |
|---|---|---|
| 1 | Thursday, 1 January 1857 | New Year's Day |
| 2 | Wednesday, 4 February 1857 | Rosa Parks Day |
| 3 | Sunday, 22 February 1857 | Washington's Birthday |
| 4 | Tuesday, 31 March 1857 | César Chávez Day |
| 5 | Saturday, 30 May 1857 | Memorial Day |
| Friday, 3 July 1857 | Independence Day (observance) | |
| 6 | Saturday, 4 July 1857 | Independence Day |
| 7 | Monday, 7 September 1857 | Labor Day |
| 8 | Friday, 25 December 1857 | Christmas |