The Prime Meridian

The Prime Meridian is an imaginary line that runs from the North Pole to the South Pole, dividing Earth into the Eastern and Western Hemispheres. It is located at 0 degrees longitude and passes through Greenwich, London. The Prime Meridian serves as the starting point for measuring longitude, which helps determine a location’s position east or west of this line. It is essential for navigation, mapping, and timekeeping, as it establishes Coordinated Universal Time (UTC) and helps coordinate global activities. Essentially, it acts as a reference line that helps us understand where places are on Earth's surface.