Why did Jamestown become an island?

How much of the US fleet was destroyed at Pearl Harbor? When was the Railway Sleeping Car invented? Which is cooler katana or buster sword? What happened to slaves who disobeyed their owner? Who defeated Anthony and became first ruler of the roman empire? How do historians know the silk road even existed? How did ancient Romans come up with their gods? Where was the first transcontinental telephone line finished? What did Senator Stephen A Douglas designate as the three groups that opposed the Fugitive Slave Act? When and where did baseball player Gene Moore die? When did England join the Common Market that preceded the EU? Do humans always defecate after death? What treasures were in King Tutankhamuns tomb? Who is the only player to win 3 consecutive Super Bowls? What did the Romans do after they invaded? What did the Anglo Saxons do for entertain themselves? What led the US to join the fight against Germany? Was billy the kid in a gang? How does Cicero influence modern day speech? What are the 2 bodies of water that border Constinople?