Answer:
Nicholas Copernicus was the Astronomer who first placed the sun at the center
Personally, i don't think he is.
John Brown Believed that the only way to overthrow the institution of slavery is by doing an armed revolt. We have to aware that in his Era, slavery is very common. Is like owning a dog in this era. He probably tried to convince the slave owners to realize the value of human's dignity no matter what the race is but nobody agrees with his point of view.
Venice and Florence emerged as key centers of trade in the Mediterranean, based on the trade of silk, cotton, wool and spices. The Italian city-states were the bridge between the Byzantine Empire, Western Europe, North Africa and the Middle East.
Should consider all the possible outcomes and your benefits
That is false. It was japanese