Many Jewish immigrants came to the United States to avoid religious persecution

push factor  

Explanation:

A push factor is a term that is related to the migration of people from one country to another. This term refers to the falha that a country has in maintaining a group of people within its territory, keeping them unhappy and oppressed for some reason and forcing them to migrate to another country in search of a better life.

An example of this can be seen in the question above, where it shows that the Jews left Russia for the USA in 1800 because Russia allowed them to suffer religious persecution.

Judaism

Explanation:

Some people consider Christianity, Islam, and Judaism “Abrahamic religions” because of the role Abraham played in each. Abraham was the founder of the Jewish religion, which later led to the creation of Christianity and Islam.