Cabeza de vaca- seen here- is best known for which of these accomplishments?

a) he defeated the aztecs.
b) he explored much of what is now texas.
c) he discovered what is now known as texas.
d) he was the first european to explore the mississippi river.

What lands were added to the russian empire under ivan iv, peter the great, and catherine the great?

Which are in millennium development goals check all that apply

The crittenden compromise which option explains the role that this legislation played in the buildup to the civil war? it attempted to resolve the complications introduced by the missouri compromise; this to stave off the civil war. it sought to encourage southern diplomats to take their seats in congress so their voices could be heard in government. it proposed six amendments to the constitution aimed at protecting slavery; however, its passage was blocked by congress. it attempted to establish stipulations that made secession from the united states constitutionally legal.