Napoleon eventually earned the title he gave himself as O king because of the kingdom he eventually amassed
O Holy Roman Emperor because he was allied to the Catholic Church
o emperor because he did build an empire adding Switzerland, Italy, Belgium and Spain to France
supreme leader due to his own megalomania

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I believe the answer is emperor because he did build an empire adding Switzerland, Italy, Belgium and Spain to France

Explanation:

well this is going to be a long answer lol ok so the visigoths were a branch of the goths who frequently raided rome, uh the hunas attacked the guptas a lot and weakened them, uuhm of course the romans used math and science in there every day lives i mean they had a whole empire to run, and rome was split into east and west by a general named diocletian. hope this you! : )