Ancient History
Eratosthenes in the 3rd century BC first proposed a system of latitude and longitude for a map of the world. By the 2nd century BC Hipparchus was the first to use such a system to uniquely specify places on the earth. He also proposed a system of determining longitude by comparing the local time of a place with an absolute time. This is the first recognition that longitude can be determined by accurate knowledge of time. In the 11th century Al-Biruni believed the earth rotated on its axis and this forms our modern notion of how time and longitude are related.
Read more about this topic: History Of Longitude
Famous quotes related to ancient history:
“To some extent, mythology is only the most ancient history and biography. So far from being false or fabulous in the common sense, it contains only enduring and essential truth, the I and you, the here and there, the now and then, being omitted. Either time or rare wisdom writes it.”
—Henry David Thoreau (1817–1862)