It proved that the world was round to all the people who didn't believe so then.
Answer:
killed about 200 African Americans
in Louisiana in 1873
beatings, lynchings, and arson
were common tactics
attacked African Americans
in broad daylight
Explanation:
As Europeans moved beyond exploration and into colonization of the Americas, they brought changes to virtually every aspect of the land and its people, from trade and hunting to warfare and personal property. European goods, ideas, and diseases shaped the changing continent.
Televisions is the answer.