Protests of 1968 anti-dictatorship student demonstrations throughout the year. On April 20, Enoch Powell made an anti-immigration speech that sparked demonstrations throughout Britain. His Rivers of Blood speech helped define immigration as a political issue and helped legitimize anti-immigration sentiment. On May 24–27, students in Stockholm institute the occupation of the Student Union Building. In October, the Rodney Riots in Kingston, Jamaica, were inspired when the Jamaican government of Hugh Shearer banned Guyanese university lecturer Dr. Walter Rodney from returning to his teaching position at the University of the West Indies. Rodney, a historian of Africa, had been active in the Black power
Mexican Movement of 1968 to move the Games to Los Angeles if the situation deteriorated. Protests took place throughout 1968, and were often violently stopped by police. The Silence March was a silent demonstration that took place on September 13, meant to prove that the movement was not a series of riots but had discipline and self-control. From July to September 1968, student movements started to arise and become stronger, to the point that the government began aggressively intervening. On October 2, 1968, at 5 PM in the Plaza de las Tres Culturas in Tlatelolco, a neighborhood of Mexico City, almost 10 thousand men,