The Earth resembles a sphere. (“Sphere” comes from the ancient Greek word sphaira, meaning “ball.”) A sphere can be imagined to be cut in half either horizontally or vertically.
The region on Earth that is closest to the Equator (the imaginary east-west line encircling the Earth midway between the North and South poles) is called the tropics.
Welcome to Oculi Mundi - the Eyes of the World - a new platform for exploring antique maps of the earth and skies and the history of human exploration.