From 55 BCE to the 1500s CE, the British Isles were: A. invaded and conquered
by many different groups,

B. the center of the largest empire in the world.

C. the base of operations for Viking expeditions,

D. unified under a powerful Swedish king,

answer; /// i believe that they became successful farmers; ///////////////

napoleon the third became a empire in 1873 also known as the era of the franco-prussian war.

the russian revolution of 1917 involved the collapse of an empire under tsar nicholas ii and the rise of marxian socialism under lenin and his bolsheviks.