Public holidays
1790, Brasil, Piauí
| # | Date | Public holiday |
|---|---|---|
| 1 | Friday, 1 January 1790 | Confraternização Universal |
| 2 | Tuesday, 16 February 1790 | Terça-feira de Carnaval |
| 3 | Friday, 2 April 1790 | Sexta Feira Santa ou Paixão de Cristo |
| 4 | Wednesday, 21 April 1790 | Tiradentes |
| 5 | Saturday, 1 May 1790 | Dia do Trabalho |
| 6 | Thursday, 3 June 1790 | Corpus Christi |
| 7 | Tuesday, 7 September 1790 | Independência do Brasil |
| 8 | Tuesday, 12 October 1790 | Nossa Senhora Aparecida |
| 9 | Tuesday, 19 October 1790 | Dia do Piauí |
| 10 | Tuesday, 2 November 1790 | Finados |
| 11 | Monday, 15 November 1790 | Proclamação da República Brasileira |
| 12 | Saturday, 25 December 1790 | Natal |