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 Sciences, UNAM four other buildings lodging the Faculty's respective departments and their faculty. The newer part of the complex consists of two buildings, one called "Amoxcalli", which holds the Faculty's library and the Computing Center. The newest one is called "Tlahuizcalpan" which hosts various labs and research premises, as well as classrooms. In recent years, an interdisciplinary extension of the Faculty was inaugurated in the port of Sisal, Yucatán, devoted to the research of coastal ecosystems and their species. The National Herbarium of Mexico at UNAM in Mexico City houses the largest collection of plant specimens in all of Latin America and