Why did pioneers travel in groups and what were they called?

How do we know that the Mycenaeans were warlike people? Loyalists were least numerous where? What power does the constitution give the executive branch? What is the ultimate goal of the holocaust? What are the duties of gc in pakistan air force? Who played Rapunzel's voice? What people of both French and native ancestry reflect the interaction and blending of cultures throughout Canadian history!? Did the cavemen tie up their umbilical cords like people do now? What unites Americans more than anything else? Who was In power after Caesar? Why do historians call the years 1687-1789 the age of reason? Which US military bases will see the first return of troops as the war in Iraq enters its final phases? What was General George B McClellan's nickname? When did the pilgrims go to holland? What were the provisions of slave trade compromise? What was coal mining in the industrial revolution? What was one thing that happened in 1963 with Martin Luther King? Who won the War of the Spanish Succession? What are all the Jatt last names? What did the Monroe doctrine Monroe state?

Why did pioneers travel in groups and what were they called?