How long did people live in 400 BC?

Who invented vending machine? What does the name gohar mean? Why are people saying the end of the world is on March 11 2011? A narrow band of dry grassland on the southern edge of the Sahara? What did the Public Works Administration need to work properly? Why did Tudors explore the world? What was the purpose of a death camp? What weapons are considered ballistic? Totem poles are an artifact of which American Indian region? What nationality is the last name bigelow? The American Federation of Labor led by Samuel Gompers proposed that the union should negotiate for all the workers This idea is called? What was the death toll in the Battle of Fort Sumter? How do historians interpret the events of the Salem witch trials? What is the past particular form of cry? Where did the Romans borrow much of their culture? What are ten facts about Australia's involvement in the Vietnam War? Practice of banning ideas because they are alarming or offensive? Why did contantine move the capital of the roman empire? General George S Patton Jr? What are inertia governors?