Public holidays
1450, Brasil, Piauí
| # | Date | Public holiday |
|---|---|---|
| 1 | Tuesday, 1 January 1450 | Confraternização Universal |
| 2 | Tuesday, 19 February 1450 | Terça-feira de Carnaval |
| 3 | Friday, 5 April 1450 | Sexta Feira Santa ou Paixão de Cristo |
| 4 | Sunday, 21 April 1450 | Tiradentes |
| 5 | Wednesday, 1 May 1450 | Dia do Trabalho |
| 6 | Thursday, 6 June 1450 | Corpus Christi |
| 7 | Saturday, 7 September 1450 | Independência do Brasil |
| 8 | Saturday, 12 October 1450 | Nossa Senhora Aparecida |
| 9 | Saturday, 19 October 1450 | Dia do Piauí |
| 10 | Saturday, 2 November 1450 | Finados |
| 11 | Friday, 15 November 1450 | Proclamação da República Brasileira |
| 12 | Wednesday, 25 December 1450 | Natal |