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How many working days in year 1913?
Here is the detail of the calculation:
Because 1913 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 11 public holidays that do not fall during a weekend and we obtain 250 working days in 1913.
 Here is the list of these 11 public holidays: 
 
 1. New Year's Day : Wednesday, 1 January, 1913 
2. Good Friday : Friday, 21 March, 1913 
3. Easter Monday : Monday, 24 March, 1913 
4. Victoria Day : Monday, 19 May, 1913 
5. Canada Day : Tuesday, 1 July, 1913 
6. August Civic Holiday : Monday, 4 August, 1913 
7. Labour Day : Monday, 1 September, 1913 
8. Thanksgiving : Monday, 13 October, 1913 
9. Remembrance Day : Tuesday, 11 November, 1913 
10. Christmas : Thursday, 25 December, 1913 
11. Boxing Day : Friday, 26 December, 1913 
And here is the public holiday falling on a weekend:
1. National Aboriginal Day : Saturday, 21 June, 1913