Question

What country established the worlds largest empire

Answer 1

Great Britain established the worlds largest empire. =)

Answer 2

Great Britain established the worlds largest empire because at the point when the British Empire was at its stature in the mid 1900s, it included more than 20 percent of the world's territory region and more than 400 million individuals - the single biggest realm in the historical backdrop of the world since time started. 

Hope i've helped!