Republic of Formosa
The Republic of Formosa (), was a short-lived republic that existed on the island of Taiwan in 1895 between the formal cession of Taiwan by the Qing Dynasty of China to the Empire of Japan by the Treaty of Shimonoseki and it being taken over by Japanese troops. The Republic was proclaimed on 23 May 1895 and extinguished on 21 October, when the Republican capital Tainan was taken over by the Japanese. Though sometimes claimed as the first Asian republic to have been proclaimed, it was predated by the Lanfang Republic in Borneo, established in 1777, as well as by the Republic of Ezo in Japan, established in 1869.
Second Federal Republic of Mexico
The Second Federal Republic of Mexico () is the name given to the second attempt to achieve a federalist government in Mexico. Officially called the United Mexican States (), a federal republic was implemented again on August 22, 1846 when interim president José Mariano Salas issued a decree restoring the 1824 constitution. Like the Mexican Empire, the First Federal Republic and the Centralist Republic it was a chaotic period, marked by political instability that resulted in several internal conflicts. Mexico's loss of the war with the United States saw half the territory Mexico claimed become part of the United States. Even though Antonio López de Santa Anna played a major role in much of this history, he returned to the presidency yet again, selling northern territory coveted by the United States contiguous to territory it just gained in the Treaty of Guadalupe Hidalgo. The sale of the Mesilla Valley was for many the final straw, and liberals promulgated of the Plan of Ayutla, calling for the overthrow of Santa Anna. Santa Anna went into exile and the liberals set about implanting their vision of Mexico.