L4-U2-P3 Alcatraz 2🔱恶魔岛

The prison was designed to hold up to 336 prisoners

However the average of population was only about 270

Although，there were several notorious inmates such as AICapone，most of the inmates were not well-known

Many had tried to escape from other prisoners or were considered violent

If a man did not behave at another prison，he could be sent to Alcatraz

At Alcatraz there was just one inmate in each prison cell

Prison life at Alcatraz was highly structured and boring

It was designed to teach prisoners to follow rules

Thy had four rights：food 、clothing、shelter、and medical care

Everything else was a privilege that had to be earned

Privileges included working，visits from family members and access to the prison library

There were also activities such as painting and music

Once a prisoner showed that he could follow the rules ，he could be transferred back to another prison to finish his sentence

Alcatraz was used as a prisonfor 29 years

During that time no prisoner escaped sucessfully

There were 14 escape attempts involving 36 prisoners

23 were caught alive and 6 were shot snd killed

2 men tried to escape twice

2 drowned and 5 were listed as missing and presumed drowned

The most violent escape attempt occurred on may 2nd ，1946， when 6 prisoners tried to escape

That event is called “Battle of Alcatraz”

While it was in use Alcatraz held some of the most notorious criminals in American history，such as AI Capone

AI Capone was a crime boss who built his career in Chicago

The prison was finally closed in 1963

It was closed because It was too expensive to operate