Public holidays
1866, Suisse, Appenzell Innerrhoden (Oberegg)
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1866 | New Year's Day |
| 2 | Friday, 30 March 1866 | Good Friday |
| 3 | Monday, 2 April 1866 | Easter Monday |
| 4 | Thursday, 10 May 1866 | Ascension Day |
| 5 | Monday, 21 May 1866 | Whit Monday |
| 6 | Thursday, 31 May 1866 | Corpus Christi |
| 7 | Wednesday, 1 August 1866 | Swiss National Day |
| 8 | Wednesday, 15 August 1866 | Assumption of Mary |
| 9 | Thursday, 1 November 1866 | All Saints' Day |
| 10 | Saturday, 8 December 1866 | Immaculate Conception |
| 11 | Tuesday, 25 December 1866 | Christmas Day |
| 12 | Wednesday, 26 December 1866 | Saint Stephen's Day |