The U.S. was originally populated by northern Europeans. African slaves were added. Then in the late 19th century people started coming from southern Europe. Within the last 50 years, we've seen a big influx from Asia and Mexico.
is the following correct?:--
--AMerican population was high before europeans came
--WHen europeans came, population of natives dropped
--More europeans came
--Others came and population continues to grow