Mexican Cession Mexican Cession, with considerable local autonomy punctuated by several revolts and few troops sent from central Mexico, in the period from 1821–22 after independence from Spain up through 1846 when U.S. military forces seized control of California and New Mexico on the outbreak of the Mexican–American War. The northern boundary of the 42nd parallel north was set by the Adams–Onís Treaty signed by the United States and Spain in 1821 and ratified by Mexico in 1831. The eastern boundary of the Mexican Cession was the Texas claim at the Rio Grande and extending north from the headwaters of the Jojo
History of the Philippines (1521–1898) of Paris (1898) was signed, ending the Spanish–American War and selling the Philippines to the United States for $20 million. With this treaty, Spanish rule in the Philippines formally ended. On January 23, 1899, Aguinaldo established the First Philippine Republic in Malolos. On February 4, 1899, the Philippine–American War began with the Battle of Manila (1899) between Americans forces and the nascent Philippine Republic. History of the Philippines (1521–1898) The history of the Philippines from 1521 to 1898, also known as the Spanish colonial period, a period that spans during the Captaincy General of the Philippines located in the collection