The earliest settlers of North America arrived .
from the Carribean by sailing to North America during a period of intense famine
when Columbus and the Europeans discovered the land
from Asia by crossing over the Bering Strait during an ice age
from Africa by crossing a land bridge that existed for several thousand years
from South America by migrating north to find more forgiving climates
Which of the following ancient Greek city-states was famous for inventing and practicing democracy?
Sparta
Corinth
Argos
Athens
Macedon
