Professors also decided on the subjects to be taught, usually following the preferences of the Church and suppressed modern ideas such as Darwin's theory of evolution [citation needed] By the end of the 19th century many changes were taking place in Argentina.
On March 31, 1918, when classes should have been restarted, the students organised another strike, with demonstrations, that finally forced the national government to intervene the university.
The objectives of the 1918 Cordoba Reform were promptly adopted by many student organizations, and one by one, from Argentina to Mexico, Latin American universities experienced unprecedented uprisings.
In 1924, when Haya de la Torre, leader of the university reform in Peru, founded the Popular Revolutionary American Alliance, the original student demands evolved into a vigorous and ambitious political, social, and economic movement.
Since University Reform, student organisations have maintained close links with workers' organizations and labor unions, frequently joining them in demonstrations and protests.
Another consequence has been the politicizing of the student centers for the elections inside the universities, with which they are usually connected, identified with, and supported by national political parties.