what is the old world and new world
New World The term originated in the early 16th century after Europeans made landfall in what would later be called the Americas in the age of discovery, expanding the geographical horizon of classical geographers, who had thought of the world as consisting of Africa, Europe, and Asia, collectively now referred to as the Old World (a.k.a. Afro-Eurasia).
Third World The term Third World was formulated in 1952 by French economic historian Alfred Sauvy to mean countries that were neither part of the West nor of the Iron Curtain.[3] Thus the term originally had a political meaning as it arose during the Cold War to define countries that remained non-aligned with either NATO or the Communist Bloc. The United States, Canada, Japan, Hong Kong, South Korea, Western European nations and their allies represented the First World, while the Soviet Union, China, Cuba and their allies represented the Second World. This terminology provided a way of broadly categorizing the nations of the Earth into three groups based on political and politically-related economic divisions.