First off, there is more than one kind of stem cell. Human stem cells are unique because they have the potential to become a specialized cell and can divide and renew themselves, according to the National Institutes of Health.
Doing Time as a Federal Prison: 1934-63. In 1933, the Army relinquished Alcatraz to the U.S. Justice Department, which wanted a federal prison that could house a criminal population too difficult or dangerous to be handled by other U.S. penitentiaries.
The historic and notorious Alcatraz penitentiary, located on Alcatraz Island in San Francisco Bay, is one of America's most infamous prisons. It operated for almost thirty years, closing in 1963 and re-opening as a tourist attraction in 1973.he historic and notorious Alcatraz penitentiary, located on Alcatraz Island in San Francisco Bay, is one of America's most infamous prisons. It operated for almost thirty years, closing in 1963 and re-opening as a tourist attraction in 1973.