In the 1800s, many people faced nativism, which was

Summary and Definition of Nativism in America

Summary and Definition: Nativism in America refers to the preference for established US residents, as opposed to foreigners or "others" considered to be outsiders and the opposition to immigration. The belief in Nativism was a prejudicial attitude towards immigrants based on their national origin, their ethnic background, their race or religion. The doctrine of Nativism in America resulted in a widespread attitude that rejected alien persons, or culture, and led to xenophobia and new, stringent laws being passed to restrict immigration.

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.

presidency should be the title