Public holidays
1878, USA, Delaware
| # | Date | Public holiday |
|---|---|---|
| 1 | Tuesday, January 1, 1878 | New Year's Day |
| 2 | Monday, January 21, 1878 | Martin Luther King Day |
| 3 | Friday, April 19, 1878 | Good Friday |
| 4 | Monday, May 27, 1878 | Memorial Day |
| 5 | Wednesday, June 19, 1878 | Juneteenth National Independence Day |
| 6 | Thursday, July 4, 1878 | Independence Day |
| 7 | Monday, September 2, 1878 | Labor Day |
| 8 | Monday, November 11, 1878 | Veterans Day |
| 9 | Thursday, November 28, 1878 | Thanksgiving |
| 10 | Friday, November 29, 1878 | Black Friday |
| 11 | Wednesday, December 25, 1878 | Christmas |