Which domestic shift most affected the demographic makeup of northern US cities in the early 1900s?
migration of African Americans from southern farms to northern factories
influx of illegal immigrants from Mexico and Central America
discovery of large coal deposits in some midwestern states
US acquisition of Puerto Rico and the Philippines after the Spanish-American War
US victory over Mexico in the Mexican-American War
migration of African Americans from southern farms to northern factories
influx of illegal immigrants from Mexico and Central America
discovery of large coal deposits in some midwestern states
US acquisition of Puerto Rico and the Philippines after the Spanish-American War
US victory over Mexico in the Mexican-American War