Greenwich Meridian Marker at Orwell

Quiet and open road. There’s a Greenwich Meridian marker at the roadside near the Orwell end.

The "invention" of the prime meridian – more precisely, the scientifically based division of the globe into longitude and latitude, with the prime meridian running at this point as the central reference line – in the second half of the 19th century was an epochal masterpiece in the field of cartography and navigation, particularly significant for seafaring at the time. Even today, in the age of modern GPS navigation based on satellites orbiting the Earth, coordinates based on this principle continue to be used to determine location.
A film (in German) from the highly recommended series "Treasures of the World – Heritage of Humanity" explains the UNESCO World Heritage-listed sites in Greenwich and discusses the problem of longitude measurement solved there. This episode can be found in the ARD media library under the following link =>> ardmediathek.de/video/schaetze-der-welt/maritime-greenwich-grossbritannien-folge-194/swr/Y3JpZDovL3N3ci5kZS83MDM1NjMw