Many immigrants left their homes and came to the united states in the 1800s because of

The United States experienced major waves of immigration during the colonial era, the first part of the 19th century and from the 1880s to 1920. Many immigrants came to America seeking greater economic opportunity, while some, such as the Pilgrims in the early 1600s, arrived in search of religious freedom.

Here is the website I got this information from:


www.history.com/topics/u-s-immigration-before-1965

That president would be none other than president warren g harding , return to say of life before wwi

They weaken the south vietnamese army.