As civilisations grew, they needed to trade with other civilisations for food and materials. In ancient Egypt, boats were used about 6,000 years ago.
They transported large stones from Aswan to help build the pyramids.
Trade between civilisations was important. People travelled between the sea from the Indus Valley and the Arabian Peninsula and along the coast of Africa as early as 2,000 BCE.
Archaeologists discovered flat pieces of stone with writing on them in old towns in Mesopotamia. The type of writing was that used in the Indus Valley civilisation. These, thought to be seals, were used to cover bags or boxes of food and objects that were traded. They also had images on them to show which traders they came from.
Skiffs were simple boats made of papyrus (thin sheets made from water plants) which were usually used for fishing and travelling purposes.
The early seamen, used a ship with a sail, called a dhow, for fishing and trading.