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How many working days in year 1916?

Here is the detail of the calculation:

Because 1916 is a leap year, it has 366 days.

Let's remove 53 saturdays and 53 sundays. It remains 260 days.

Now, let's remove 10 public holidays that do not fall during a weekend and we obtain 250 working days in 1916.

Here is the list of these 10 public holidays:

1. Terça-feira de Carnaval : вторник, 7 март, 1916
2. Sexta Feira Santa ou Paixão de Cristo : пятница, 21 апрель, 1916
3. Dia do Trabalho : понедельник, 1 май, 1916
4. Corpus Christi : четверг, 22 июнь, 1916
5. Independência do Brasil : четверг, 7 сентябрь, 1916
6. Nossa Senhora Aparecida : четверг, 12 октябрь, 1916
7. Finados : четверг, 2 ноябрь, 1916
8. Proclamação da República Brasileira : среда, 15 ноябрь, 1916
9. Morte de Zumbi dos Palmares : понедельник, 20 ноябрь, 1916
10. Natal : понедельник, 25 декабрь, 1916

And here are the 3 public holidays falling on a weekend:

1. Confraternização Universal : суббота, 1 январь, 1916
2. São João : суббота, 24 июнь, 1916
3. Emancipação política : суббота, 16 сентябрь, 1916