1999 UNAM strike the closure. On February 1, 2000, students and workers opposed to the strike clashed with CGH and their supporters. This incident occurred when 200 students attempted to enter an UNAM-owned and run high-school, not on the main campus, to try to restart classes. 400 federal police officers were sent to open a way through the barricades, which they accomplished with many injuries, and even some fatal ones. On February 7, 2000, federal police stormed the university's main campus, ending the takeover. A total of 632 people were arrested during that ultimate day of violent clashes. 1999 UNAM strike The 1999-2000
School of Chemistry, UNAM and textile manufacturing and some pharmaceutical industries. However, the harsh national and international context, derived from the mexican revolution movement and the World War I affected the availability of highly skilled personnel. Therefore, in January 1913, Juan Salvador Agraz presented an initiative to the mexican president Francisco I. Madero to create the School of Chemistry. On September 23, 1916, the mexican president Venustiano Carranza promulgated by government-decree the foundation of the National School of Industrial Chemistry (Escuela Nacional de Química Industrial, and later Escuela Nacional de Ciencias Químicas or National School of Chemical Sciences) in the town of Tacuba (north-west