Why do some people protest against Christopher Columbus being seen as a hero?

Columbus Day is arguably the most divisive of all federal holidays. There’s no mail service. Some big banks are closed. And while plenty of stores offer “Columbus Day Savings,” the specials they’re promoting tend to indicate the explorer wasn’t the keenest shopper on the planet.

While he’s credited for leading the charge of European immigration to North America, history has shown that Christopher Columbus was less a heroic historical figure and more of an arch-villain, bringing disease, wars and more to what would eventually become the U.S. and brutalizing Native Americans in the process.

Explanation:

Because the native Americans where living in peace until he came and said he "discovered" a new land when the whole time the native Americans where there FIRST!

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail

answer; clear and present danger test;