First Portuguese Republic
The First Portuguese Republic spans a complex 16-year period in the history of Portugal, between the end of the period of constitutional monarchy marked by the 5 October 1910 revolution and the 28 May 1926 coup d'état. The latter movement instituted a military dictatorship known as Ditadura Nacional that would be followed by the corporatist Estado Novo regime of António de Oliveira Salazar.
President Sidónio Pais.
Bernardino Machado, last president of the First Portuguese Republic.
António José de Almeida (1919–1923)
The current Portuguese flag dates back to the First Republic.
5 October 1910 revolution
The 5 October 1910 revolution was the overthrow of the centuries-old Portuguese monarchy and its replacement by the First Portuguese Republic. It was the result of a coup d'état organized by the Portuguese Republican Party.
Contemporary commemorative illustration of the Proclamation of the Portuguese Republic on 5 October 1910.
Commemorative plaque on 31 de Janeiro Street, in Porto.
Eudóxio César Azedo Gneco, also known as Azedo Gneco, one of the main leaders of the Portuguese Socialist Party, giving a speech at a republican gathering in Lisbon (1 May 1907)
Anonymous reconstruction of the regicide published in the French press