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How many working days in year 1969?
Here is the detail of the calculation:
Because 1969 is not a leap year, it has 365 days.
Let's remove 52 saturdays and 52 sundays. It remains 261 days.
Now, let's remove 10 public holidays that do not fall during a weekend and we obtain 251 working days in 1969.
 Here is the list of these 10 public holidays: 
 
 1. Capodanno : середа, 1 січень, 1969 
2. Epifania : понеділок, 6 січень, 1969 
3. Lunedì di Pasqua : понеділок, 7 квітень, 1969 
4. Anniversario Liberazione : п'ятниця, 25 квітень, 1969 
5. Festa del lavoro : четвер, 1 травень, 1969 
6. Festa della Repubblica Italia : понеділок, 2 червень, 1969 
7. Ferragosto o Assunzione : п'ятниця, 15 серпень, 1969 
8. Immacolata Concezione : понеділок, 8 грудень, 1969 
9. Santo Natale : четвер, 25 грудень, 1969 
10. Santo Stefano : п'ятниця, 26 грудень, 1969 
And here are the 2 public holidays falling on a weekend:
1. Ognissanti o Tutti i Santi : субота, 1 листопад, 1969 
2. Festa di Sant'Ambrogio : неділя, 7 грудень, 1969