How is caucus diffrent from a nominating convention

Convention: Once the primaries and caucuses are completed in each state, a national convention is heald in which a party's nomination for president is formally announced to the public. During the convention, the elected delegates cast their vote for a party candidate and the candidate with the most delegates gets the party's nomination.

Brainleist?

the answer is the government.

they died because of a disease during the first spanish colonies.