He was the most influental leader in my opinion beacuse he has had many accomplishments. He was in the Bible as the liberator of the Jews held captive in Babylon. His legacy is the founding not only of an empire but of a culture and civilization that continued to expand after his death and lasted for two centuries. He was a strong influence on the Greeks. He declared the first charter of human rights, He invented the first postal system and His name is mentioned 22 times in the old testament which means he was a great and well recognized leader.