World

320px|thumb|Image of the physical world, captured by the Hubble Space Telescope

In Greek mythology, Gaia (; , a poetic form of (''''), meaning 'land' or 'earth'), also spelled Gaea (), is the personification of Earth. She is the mother of Uranus (Sky), with whom she conceived the Titans (themselves parents of many of the Olympian gods), the Cyclopes, and the Giants, as well as of Pontus (Sea), from whose union she bore the primordial sea gods. Her equivalent in the Roman pantheon was Terra.

international military conflict

broad group involving people and governments of the world that share common values and operational ties

personification of the Earth in ancient Roman religion and mythology

In ancient Greece, the term oecumene (UK) or ecumene (US; ) denoted the known, inhabited, or habitable world. In Greek antiquity, it referred to the portions of the world known to Hellenic geographers, subdivided into three continents: Africa, Europe, and Asia. Under the Roman Empire, it came to refer to civilization itself, as well as the secular and religious imperial administration.

planetary-scale changes in the Earth system

news from abroad

future vision

Wikimedia portal

Communication network covering the Earth

global human population statistics

academic discipline

estimates of how many people use the Internet

term used for international commons in political economic theory