Which group(s) had large numbers of people already living in the West (in places like California, Arizona, & Colorado) before the 1820s?

united states government;

the following men who did not in the unification of italy were.

a) giuseppe mazzini

c) alexander ll

the other two men were camilo cavour and giuseppe garibaldi they the unification of italy by yielding territories in the italian unification. in 1861 italy was declared a united-nation state under the sardinian king victor immanuel ll.

what are the statements.?

answer; validity;