Peasants and serfs
The Russian/Soviet Empire.
The third largest Empire in history is the Russian Empire spanning 22.8 million km2 (1895).
Russian people are the largest ethnic group in Russia.
The British Empire was the largest empire in history.
Bolsheviks
Germanic
jews
It was founded by Cyrus the Great and reached its peak under Darius the Great. However it was not the largest ever known - compare it with the Spanish Empire, the British Empire and the Russian Empire.
jews
the assyrian empire and yhe sumerian empire
The largest country in the world is currently the Russian Federation, laregely because they control all of Siberia. The largest country in history would be the British Empire, the Mongol Empire, or the Soviet Union, depending on your definition of a country.
Greeks