On March 21st 1963, Alcatraz Prison in San Francisco Bay closed down and transferred all it's prisoners to other institutions, according to official government sources. At it's peak period of use in the 1950s, "The Rock," or "America's Devil Island" housed over 200 inmates at the maximum-security facility. Alcatraz remains an icon of American prisons … Continue reading March 21 1963 Alcatraz Closes