The document defines key terms related to immigration to America in the 19th century and reform movements during that period. It explains push factors that drove immigration, as well as pull factors that attracted immigrants. Additionally, it outlines groups that opposed immigration, such as the Know-Nothing Party, and defines terms like emigrant, immigrant, and steerage. The document also defines concepts relevant to religious revivals, temperance, education reform, abolition, the Underground Railroad, and women's suffrage movements during this era.