Alcatraz Island has quite a distinct history. Many people know that Alcatraz served as a.

             federal prison, but most are reluctant to know that this island served as fort. Built before.

             the Civil War, it served two main purposes. First, that it was to guard the San Francisco.

             bay area from enemy ships against a foreign invasion, and second, to hold hostage.

             prisoners of war or POW's as they were called. In this report, I'll show you how this.

             fortress came to be a federal prison, why it is no longer in operation today, and most.

             importantly, to show why it was built in the first place. When the great "Gold Rush" of.

             1849 first started, California grew from what would be considered a small, unpopulated.

             state, into what it is now. California is now one of the most populated states and it was.

             mostly the gold rush that brought attention to California. As the government saw all of.

             this happening, they realized that California was much more important than they ever.

             realized. In their realization, they decided that California must be protected. San.

             Francisco has one of the largest bays in all of California, and so this was where enemy.

             countries would most likely to try to invade the country. So this is where Alcatraz was to.

             lie, to serve as a military fort. It was supposed to serve as a secondary base in.

             companionship to another base located on the other side of Golden Gate Bridge. But.

             with severe problems trying to build this other base, Alcatraz was to remain alone. "Out.

             in the middle of the San Francisco Bay, the island of Alcatraz is definitely a world unto.

             itself. Isolation is just one of the many constants of island life for any inhabitant on.

             Alcatraz Island. It is the most reoccurring theme in the unfolding history of Alcatraz.

             Island. Alcatraz Island is one of Golden Gate National Recreation Area's most popular.

             destinations, offering a close-up look at a historic and infamous federal prison long.

             off-limits to the public.