Why did thousands of people flee away from Europe to America in the 19^th century? Give any three reasons.

Thousands of people flew away from Europe to America in the 19^th century because-

a) Poverty and hunger were common in Europe till the 19^th century.

b) Cities were crowded and deadly diseases were widespread.

c) Religious conflicts were common in Europe.

d) Religious dissenters were punished or ill-treated or harassed.