Question

I am very confused about this question... please help!
18. How is this map different from a typical map of the United States?
19. What do the new names on the map have in common?
20. How do you think this map influenced native-born Americans in the 1860's?
(I will post the picture of the map below)

Answer 1

This is the picture of the map. It also comes with a caption about immigrants, but it still doesn't make sense...

Answer 2

Nevermind. Apparently, all of the names on the map are Irish, so the map suggests that Irish immigrants may take over the United States by the 1900s...