Greenwich Meridian 1884



Greenwich Meridian

The prime meridian is a geographical reference line that passes through the Royal Observatory, Greenwich, in London, England.
It was first established by Sir George Airy in 1851, and by 1884, most ships used it as the reference meridian on their charts and maps.
In October 1884, 41 delegates from 25 nations met in Washington, D.C., United States,
for the International Meridian Conference.
This conference selected the meridian passing through Greenwich as the official prime meridian due to its popularity.

J. Giesen