You can call it the "Old World" I think, since what Columbus and other explorers found (the Americas) is called the "New World"
The half of the Earth that includes Asia, Australia, most of Africa, most of Europe, and Antarctica is known as the "Old World" or "Afro-Eurasia." This term distinguishes these regions from the Americas, which are referred to as the "New World." Understanding this division aids in exploring historical and cultural developments across these continents.
;