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