Public holidays
1866, España, Cantabria
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1866 | Año Nuevo |
| 2 | Saturday, 6 January 1866 | Epifanía del Señor |
| 3 | Thursday, 29 March 1866 | Jueves santo |
| 4 | Friday, 30 March 1866 | Viernes Santo |
| 5 | Monday, 2 April 1866 | Lunes de Pascua |
| 6 | Tuesday, 1 May 1866 | Fiesta del Trabajo |
| 7 | Wednesday, 25 July 1866 | Santiago Apóstol |
| 8 | Saturday, 28 July 1866 | Día de las Instituciones de Cantabria |
| 9 | Wednesday, 15 August 1866 | Asuncíon de la Virgen |
| 10 | Saturday, 15 September 1866 | La Bien Aparecida |
| 11 | Friday, 12 October 1866 | Fiesta nacional de España |
| 12 | Thursday, 1 November 1866 | Todos los Santos |
| 13 | Thursday, 6 December 1866 | Día de la Constitución Española |
| 14 | Saturday, 8 December 1866 | Immaculada Concepcíon |
| 15 | Monday, 10 December 1866 | Immaculada Concepcíon |
| 16 | Tuesday, 25 December 1866 | Día de Navidad |