Navigation is the set of methods people use to find direction and location while traveling. It has been used on land, at sea, and in the air for thousands of years. Travelers rely on different tools and systems to guide their journeys.
Early sailors used the position of the Sun, Moon, and stars to guide their routes. The compass, invented in China over 1,000 years ago, helped travelers know direction even without clear skies. Maps and charts were also used to plan routes across oceans and continents.
Today, navigation includes digital systems such as GPS, which uses satellites to show exact positions. It is used by pilots, sailors, drivers, and hikers around the world.