How Oceans Came To Be Named And Why World Oceans Day Is Celebrated

On World Oceans Day, find out how much you know about oceans and the significance of the day

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On World Oceans Day, find out how much you know about oceans and the significance of the day

Oceans and seas have fascinated human civilizations for ages. They find mention in epics like Homer’s Iliad, and were associated, for the longest time, with the unknown and the spirit of travel, adventure and discovery. It is this lure that led countless adventurers, seafarers and explorers to traverse the high seas, risking life and property, to unknown lands⁠—for fame, glory, thrill and riches.

On World Oceans Day, Reader’s Digest takes a look at the fascinating story of how oceans came to be named and boundaries set for them, over the course of the centuries. We also delve into how the occasion of the World Oceans Day was instituted by the United Nations.

On oceans and their names

1. The word ocean comes from the Greek word ōkeanos, taken from Oceanus, the Titan father of nearly 3,000 river gods in Greek mythology.

2. The names of the oceans date back centuries. For instance, the name of the Atlantic Ocean can be traced back to the mid-sixth century BC, and was variously referred to as the Aethiopian Ocean or the Great Western Ocean to cartographers from different countries. The Indian Ocean, too, was variously referred to as the Western Oceans (by 15th century Chinese cartographers), the Eastern Ocean (by geographers in the West during the 18th century), while the ancient Greeks called it the Erythraean Sea. In Indian cultures, it was known as the Sindhu Mahasagara.

Maris Pacifici by Abraham Ortelius, 1589, widely considered to be the first modern map of not just the Pacific Ocean but also the Americas (Photo vi...

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