Why did columbus reach the caribbean islands rather than the east indies?

Iam not here to cheat, i just need to check my answer. how were incan commoners grouped within their social class? a. by gender and age b. by family rank c. by wealth and status d. by religious worship my answer is c. i believe this because slaves are at the bottom of the rank, whilst the emperor is above all.

The 15th amendment to the u.s. constitution, ratified in 1870, deals with what issue? a. prohibition of alcohol b. voting c. declaring war d. free speech

Which best describes the impact of the crusades on european exploration?