-World's Greatest Empire as one single land under one authority and at one time, was the mongol empire (25,000,000 square meters) -World's greatest empire as one single land divided into authorities is the : Russian Empire.
Britain had the worlds largest Empire, spanning 33.7 million kilometres with a quarter of the worlds landmass and people under its control.
Britain was also the first muchanized, developed and urbanised country in the world and had naval as well as economic leads over other major powers for approximatly 400 years, asserting its dominance after the Napolionic wars of 1803-15.
-World's greatest empire as number of population is the British empire.
-World's greatest empire as one land but over time is the British empire
-And world's biggest ancient empire is the Arab/Muslim empire
BritainSpain had by far the largest Empire.
I think it was Rome I'm not sure though Great Britain at its peak had the largest empire.
Britain
Russia is the largest country.
I think the worlds largest country is Russia, the worlds largest continent is either Africa or China,im not entirly sure.
the world largest country is rssia
Russia
Russia
India
Chile
canada
in australia