Who was the greatest leader in history

Mimi kwangi ni Stalin

Became the leader of a poor country ,consolidated the former Russian Empire into the Soviet Union , industrialized it ,defeated the greatest fighting machine in history and made his country in a super power in less than 30 years .

Imagine becoming the president of Nigeria or Ethiopia today and by 2050 , your country is a superpower ikimenyana na US .Crazy
Russians have always had greatness in them just study their history since we the middle ages... I don't think they had to start at Nigeria levels of dysfunction