the world.
No one person achieved this. The continents separated themselves (and still move today); it's plate tectonics.
All the continents used to be a part of one land mass and separated. This supercontinent was Pangea.
It means the empire's land is adjacent to one another, meaning they are connected and not separated by water or another empire's territory. In some major empires like the Persian empire, their land was separated and spanned 3 continents.
There are some same species of both plants and animals located on separated continents. This is because the continents were all at one point joined together in one super continent: Pangea, but separated some 200 million years ago. fossils
Continental drift.
The two continents that Pangaea separated into are Laurasia in the northern hemisphere and Gondwana in the southern hemisphere.
Europe and Asia
which two continents are separated by the Ural mountain range
Of course you can! On the map, they show us that Europe and Asia are together, so it's possible. I did that once.
One example is the landmasses that used to be part of Pangaea, which eventually split into the continents we have today. Another example is the landmasses of North America and Europe, which were once connected by the supercontinent Laurasia but separated due to continental drift.
Europe and Asia
oceanic spreading ridges