USA HISTORY

Detailed explanation-1: -A canal is a human-made waterway that allows boats and ships to pass from one body of water to another. Canals are also used to transport water for irrigation and other human uses.

Detailed explanation-2: -Canals or artificial waterways are waterways or engineered channels built for drainage management (e.g. flood control and irrigation) or for conveyancing water transport vehicles (e.g. water taxi). They carry free, calm surface flow under atmospheric pressure, and can be thought of as artificial rivers.

Detailed explanation-3: -The oldest-known canals were built in Mesopotamia circa 4000 BC. The Indus Valley Civilization in Pakistan and North India (from circa 2600 BC) had the first canal irrigation system in the world. The longest canal of ancient times was the Grand Canal of China.

Detailed explanation-4: -A canal is a type of artificial waterway that is connected, or intended to be connected, to tidal water and from which boating access to the tidal water is not hindered by a lock, weir or similar structure.