three possible reasons why the Amerindian groups of South America migrated up the Caribbean archipelago.

1. They might have moved to find more food for their ever-growing population.

2. The peaceful Tainos might have moved to seek refuge from the Kalinagos.

3. Since they loved travelling by sea, they might have discovered some of those Islands by accident and thought them as suitable for habitation.

Explanation:

The Amerindian were the earliest inhabitants of the Americas. These group of  people consisted mainly of the Tainos, the Kalinagos, and the Mayans. The Kalinagos spoke Carib while the other groups spoke Arawak. The Amerindian groups were known to migrate from their South American native lands to the Caribbean in the time period that spanned the 1st to 7th centuries.

They might have moved to other territories because they wanted more food for their growing population, they wanted to seek refuge from aggressive groups, they saw some geographical locations as better for survival, or they just saw migration as a way of life.

alliances in ww1 were different from ww2 because the entente in ww1 made up of serbia,russia,france,britan,japan and italy later america  and all allied in a sort of balance of power and too keep germany,austria-hungary,and the ottomans down. russia allied the serbians in order to exert its influence in the balkans while france allied the russians because france was still in dismay and insulted after the defeat to the germans during the unification of germany and britian allied the belgians after the germans invasion of belgium.in ww2 the alliances were in a preemptive attempt to deter any further wars into happening while germany and italy allied since they were insulted and humiliated after the previous war while also sharing a similar ideology of facsim along with japan which all 3 had a want for world domination and agreed to assist one another in the endevours 

explanation:

lincoln won 212 electoral votes to mcclellan's 21 votes, and lincoln beat mcclellan. is the main reason lincoln won in 1864.