Republic of Biak-na-Bato

The Republic of Biak-na-Bato (, ), officially referred to in its constitution as the Republic of the Philippines (, ), was the first republic ever declared in the Philippines by the revolutionary Emilio Aguinaldo and his fellow members of the Katipunan. Despite its successes, including the establishment of the Philippines' first ever constitution, the republic lasted just over a month. This was after a peace treaty was signed by Aguinaldo and the Spanish Governor-General, Fernando Primo de Rivera, that includes Aguinaldo's exile to Hong Kong.