there are many reasons why people could have immigrated in the 1920s. it was probably because the economy in the USA was very good, but the economy wasn't very good in Europe.
Alone with that answer, some immigrants (such as the Irish) came to the U.S. because of famines, or because of religious persecution.
Pennsylvania
The immagrants came by mostly boat.
Three fifths of the immigrants on Earth immigrate to the United States. The majority of these immigrants come from Mexico and Canada with a few from Germany.
From... China. Or do you mean people who immigrate to China rather than from it?
Some Scottish immigrants to America were forced there as convicted prisoners, but most came seeking an opportunity for a better life, as did most other immigrants to America.
Farms in the frontier
Pennsylvania
The immagrants came by mostly boat.
Legal immigrants have to apply to the US government for permission to immigrate. Illegal immigrants sneak in.
no
Most immigrants to the United States came from Europe and Britain.
Three fifths of the immigrants on Earth immigrate to the United States. The majority of these immigrants come from Mexico and Canada with a few from Germany.
From... China. Or do you mean people who immigrate to China rather than from it?
Immigrants immigrate. Emigrants emigrate. I suppose it is possible for immigrants to then emigrate, but since you haven't said anything about from where or to where, we won't be able to answer this accurately.
Immigrants move because of certain factors such as poor economic conditions, persecution, famine, need of a better life.... and the list goes on.
Immigrants and religion
They were farm workers from Mexico.