The British Royal Observatory was located there.
Explanation
The Prime Meridian represents 0° longitude and serves as the starting point for measuring distance both East and West around the Earth. Unlike the Equator, which is determined by the axis of Earth's rotation, the location of the Prime Meridian is arbitrary and was established through international consensus.Detailed Analysis:
- It represented the geometric center of the explored world. is incorrect: The location was not chosen based on the geometric center of the explored world.
- The British Royal Observatory was located there. is correct: The Prime Meridian was officially established at the International Meridian Conference in Washington, D.C., in 1884. The meridian passing through the British Royal Observatory at Greenwich was selected primarily because the United Kingdom was the world's foremost maritime power at the time. Furthermore, approximately 72% of the world's commerce depended on sea charts that already used Greenwich as the reference meridian.
- It was the only location with advanced astronomical equipment. is incorrect: While the Royal Observatory possessed advanced astronomical equipment, other nations (such as France) also had sophisticated observatories. The decision was driven by practical maritime necessity and standardization rather than the exclusivity of equipment.
- It was situated at the intersection of the Equator. is incorrect: The Prime Meridian intersects the Equator in the Gulf of Guinea (Atlantic Ocean). Greenwich is located at a high latitude (approximately 51°N), far from the Equator.
Key Takeaway: The establishment of the Prime Meridian at Greenwich was a historical decision made in 1884, driven by the global dominance of British maritime trade and the widespread existing use of British nautical charts.