History of Boats and Ships
Humans have tended to live near water, and it is natural to make use of things that float. Logs or bundles of reeds can be lashed together to form rafts; hollow trunks can be improved to become dugout canoes. Once the principle of a watertight hull is understood, animal hides or the bark of trees can be attached to a framework of bamboo or wicker to make a simple coracle. Boats of all these kinds have been made by technologically primitive communities, and many continue to be made into the 20th century.