The Aegean Sea with its large number of islands is the origin of the term archipelago.

An archipelago (/ˌɑːrkɪˈpɛləɡ/ (About this soundlisten) ARK-ih-PEL-ə-goh), sometimes called an island group or island chain, is a chain, cluster or collection of islands, or sometimes a sea containing a small number of scattered islands.

Indonesia, Andaman and Nicobar Islands, the Galápagos Islands, Japan, the Philippines, Maldives, the Balearic Isles, the Bahamas, the Aegean Islands, Hawaii, the Canary Islands, Malta, the Azores, Canadian Arctic Archipelago, Archipelago Sea (Finland) and the Shetland Islands are all examples of well-known archipelagos. They are sometimes defined by political boundaries. The Gulf archipelago off the north-eastern Pacific coast forms part of a larger archipelago that geographically includes Washington state's San Juan islands. While the Gulf archipelago and San Juan islands are geographically related, they are not technically included in the same archipelago due to manmade geopolitical borders.[1]