Public holidays
1666, Suisse, Solothurn
| # | Date | Public holiday |
|---|---|---|
| 1 | Friday, 1 January 1666 | Neujahrstag |
| 2 | Friday, 16 April 1666 | Karfreitag |
| 3 | Saturday, 1 May 1666 | Tag der Arbeit |
| 4 | Thursday, 27 May 1666 | Auffahrt |
| 5 | Thursday, 17 June 1666 | Fronleichnam |
| 6 | Sunday, 1 August 1666 | Bundesfeier |
| 7 | Sunday, 15 August 1666 | Mariä Himmelfahrt |
| 8 | Monday, 1 November 1666 | Allerheiligen |
| 9 | Saturday, 25 December 1666 | Weihnachtstag |