Old World
Refers to Asia, Africa, and Europe, especially in contrast with the New World (the Americas). Often used in historical, geographical, or biological contexts.
See also: 新世界
The cultures of the Old World are diverse.
Exchange between the Old World and the New World began after Columbus.
新世界 refers to the Americas (and sometimes Australasia) as historically 'new' to Europeans, while 旧世界 refers to Europe, Asia, and Africa as the long-known 'old' world.
Compound of 旧 (old) and 世界 (world), a straightforward calque of the English term 'Old World'.