Answer:
the largest contigeous empire the world has ever seen is the
mongol empire
because it covered literally 9.15 million square miles of land, which is more than 16% of the earth's entire landmass.
the empire itself had 110 million people between the year 1207 and 1309, which is more than 25% of the earth's population.
~hope i helped ouo have a nice rest of ur day~
lots of love,
lee