Atlantic Ocean as the mid-19th century. During the Age of Discovery, the Atlantic was also known to English cartographers as the Great Western Ocean. The International Hydrographic Organization (IHO) defined the limits of the oceans and seas in 1953, but some of these definitions have been revised since then and some are not used by various authorities, institutions, and countries, see for example the CIA World Factbook. Correspondingly, the extent and number of oceans and seas varies. The Atlantic Ocean is bounded on the west by North and South America. It connects to the Arctic Ocean through the Denmark Strait, Greenland Sea,
Seas west of Scotland Seas west of Scotland It is a central tenet of the EU maritime policy (Directorate-General for Maritime Affairs and Fisheries) that all seas have a particular nature, defined by their geography, their ecology, their economies and their people. Most seas are nested (e.g. Atlantic Ocean, Irish Sea, Morecambe Bay) and do not, except for specific purposes such as hydrography or fisheries management, have sharp, recognised boundaries. One important sea for purposes of fisheries management is referred to as the "seas West of Scotland". In line with the EU maritime policy, the sea does not only encompass the waters but also