Who established a school for factory children?

nativists tried to get rid of the immigrants as they thought they were going to ruin the u.s.  

many women had to remain at home while husbands found work.

explanation:

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.