All of them. They were once part of Pangaea. A big chunk of landmass that contained all continents we know today. They slowly drifted apart due to continental drift and are in the pattern we see today.
But if you mean what's the oldest of the 7 that exist today... That would be Australia.
The continents are equally old. The Earth originally was a globe of rock that gathered together from space dust and rocks that came from even older stars exploding.
With the heat in the Earth that came from the pressure of gravity, the rock mass broke into separate, adjacent pieces over millions of years. These pieces drifted apart and created space in between over millions of years. These individual 'continents' drifted all over the globe in even more millions of years, and ended up clustered together again in the Southern Hemisphere. Due to changes in climate, including a 100,000-year-long cloudburst, the low spots between the drifting, moving continents filled in to become the oceans. And millions and millions of years later, the drifting and moving continues today.
So, you see, the continents are all equally old . . . as old as the Earth itself.
Africa
Glaciers first appeared on the continent of Antarctica. The oldest known glaciers on Antarctica have been dated to around 30 to 35 million years ago.
The oldest fossils in the world are found in western Australia and are those of primitive bacteria. They are about 3.5 billion years old.
As per current understanding, the San people of southern Africa are considered to have the oldest genetic lineage of any existing population. The Aboriginal Australians have also inhabited the continent for tens of thousands of years, making them one of the oldest continuous cultures on Earth.
Protolith is a term used to describe the parent rock of a metamorphic rock. Conglomerate is a sedimentary rock that can be composed of clasts of sedimentary, igneous, or metamorphic rocks, or any number of combinations of all.
I know for a fact that it was found on the Continent of Africa but I'm not sure which counrty in Africa. The oldest human remains were found in the Horn of Africa, Somilia.
The world's oldest (of the seven existing) and smallest continent is Australia.
Africa
Asia
It is Oceania and you suck.
Africa
Africa
China
Lake Baikal is the oldest lake in the world and is located in Russia on the continent of Asia.
Sydney Harbor is considered the most beautiful harbor in the world. It is the oldest city on the Australian continent.
That it is upon this Continent that the oldest fossils or other geological specimens are found.
Africa is generally considered to be the oldest continent, having existed as a stable landmass for at least 600 million years. Asia is also an ancient continent, but Africa's geological history is typically older.
If you mean the North American continent, we have that the oldest mountain range is the Appalachian Mountains. It is estimated that this chain of mountains began to form 480 million years ago.