The Prime Meridian of the World (dotted line) and the modern reference meridian indicating zero longitude using satellite measurements (solid line). Once called the Prime Meridian of the World, the ...

The Prime Meridian is the imaginary line running between the North and South Poles that's used to indicate 0° longitude. It passes through Greenwich in southeast London, and is therefore sometimes ...

A few days ago, I posted an update on the Redwood Coast Tsunami Work Group’s Facebook page (https://www.facebook.com/RCTWG/). A magnitude 5.5 earthquake occurred on ...

Go to updated and illustrated post. __1884: __Geographers and astronomers adopt Greenwich as the Prime Meridian, the international standard for zero degrees longitude. The late 19th century was an era ...

The earth’s astronomical navel* was about to shift its position. Britain’s Royal Observatory was preparing for its first permanent move in 271 years. Left behind in Greenwich (now part of London) ...

__1884: __Geographers and astronomers adopt Greenwich as the Prime Meridian, the international standard for zero degrees longitude. The late 19th century was an era of standardization. With the Second ...