History of Portugal (1834–1910)
Militant Republicans and their allies in the Carbonária were not willing to remain in the shadows of the constitutional monarchy. Between 4–5 October 1910, members of the Carbonária, republican youth, and elements of the army instigated a coup d'état against the already weak constitutional monarchy. The young king and his family, after a few miscues, escaped from the Palace in Mafra to exile in England. On the morning of 5 October 1910, the Republic was declared from the balcony of Lisbon City Hall, ending eight centuries of monarchy in Portugal.
Abolition of monarchy
In Spain monarchy was abolished from 1873 to 1874 by the First Spanish Republic, but then restored until 1931. The monarchy of Tahiti came to an end in 1880 when France made it a colony and overthrew King Pōmare V. That of Burma was abolished in 1885, when the last king, Thibaw Min, lost his throne and the country was annexed by Britain. In Brazil, the monarchy was abolished in 1889, when Emperor Pedro II was overthrown by a republican military coup (the status of the republic was fully confirmed by a plebiscite in 1993 that resulted in 66% of the votes to the republican government). In 1893 foreign business leaders overthrew Queen Liliʻuokalani of the Kingdom of Hawaii. They established a republic, which was annexed by the United States in 1898. The monarchy of Madagascar, known as the Merina Kingdom, came to an end in 1897 when France made it a colony and overthrew Queen Ranavalona III.