Cayetano Arellano High School, otherwise known as Manila North High School, is a public secondary school located along Teodoro Alonzo Street, Santa Cruz, Manila, in the Philippines.HistoryIn the Spanish–American War of 1898, Americans occupied the Philippines after defeating the Spanish armada in Manila Bay and subsequently a public high school system was created, along with other public services.The first American-established public high school in Manila was Manila High School. In 1921, Manila High School was split into two: Manila South High School, later renamed Araullo High School and Manila North High School, later renamed Arellano High School. The two pioneer public high schools expanded into many branches or annexes, which would later become independent public high schools. Many of the first public high schools were named after Filipino legal magistrates trained in the American legal system, among them, Cayetano Arellano (who became the first Filipino Chief Justice of the Supreme Court), Victorino Mapa, Manuel Araullo, Florentino Torres, Ramón Avanceña, José Abad Santos, among others.The first principals were Americans, the very first being "Mr. Eugene Willis Porter" (1921–1922), followed by "Mr. Ralph Sams" (1922–1925). Under the term of Mr. Sams, the school acquired its present site and the first graduation was held. The third American principal was "Mr. Isadore Cohen" (1925–1926).