The 1968 Tlatelolco Massacre occurred on October 2, when the Mexican government violently suppressed a student protest in the Plaza de las Tres Culturas in Tlatelolco, Mexico City. The demonstration was part of a larger movement against government repression and was fueled by demands for political and social reforms. As the protest escalated, military and police forces opened fire on the crowd, resulting in hundreds of deaths and injuries. The exact number of casualties remains disputed, but it is widely recognized as a significant event in Mexican history, highlighting issues of state violence and human rights abuses during the period leading up to the 1968 Summer Olympics in Mexico.