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How many working days in year 1908?
Here is the detail of the calculation:
Because 1908 is a leap year, it has 366 days.
Let's remove 52 saturdays and 52 sundays. It remains 262 days.
Now, let's remove 11 public holidays that do not fall during a weekend and we obtain 251 working days in 1908.
 Here is the list of these 11 public holidays: 
 
 1. Año Nuevo : Wednesday, 1 January, 1908 
2. Epifanía del Señor : Monday, 6 January, 1908 
3. San José : Thursday, 19 March, 1908 
4. Viernes Santo : Friday, 17 April, 1908 
5. Lunes de Pascua : Monday, 20 April, 1908 
6. Fiesta del Trabajo : Friday, 1 May, 1908 
7. San Juan : Wednesday, 24 June, 1908 
8. Día de la Comunidad Valenciana : Friday, 9 October, 1908 
9. Fiesta nacional de España : Monday, 12 October, 1908 
10. Immaculada Concepcíon : Tuesday, 8 December, 1908 
11. Día de Navidad : Friday, 25 December, 1908 
And here are the 3 public holidays falling on a weekend:
1. Asuncíon de la Virgen : Saturday, 15 August, 1908 
2. Todos los Santos : Sunday, 1 November, 1908 
3. Día de la Constitución Española : Sunday, 6 December, 1908