what are the 7 seas

The phrase "Seven Seas" has been used to refer to different bodies of water at various times and places throughout history. Some ancient civilizations used the phrase to describe the bodies of water known at that time. The ancient Romans called the lagoons separated from the open sea near Venice the septem maria or seven seas. Most current sources state that "seven seas" referred to the Indian Ocean, Black Sea, Caspian Sea, Adriatic Sea, Persian Gulf, Mediterranean Sea, and the Red Sea. However, not all geographers agree on this list of seven, believing that the seven seas reference will be different depending upon the part of the world and the time period in question. Some geographers point to the Age of Discovery and suggest that the seven seas represent the Atlantic, Pacific, Arctic, and Indian Oceans, as well as the Mediterranean Sea, the Caribbean, and the Gulf of Mexico. Other geographers state that the seven seas were the Mediterranean and Red Seas, Indian Ocean, Persian Gulf, China Sea, and the West and East African Seas. Today, we recognize more than 50 seas worldwide, and a sea is defined as a division of the ocean which is enclosed or partially enclosed by land.