Happy African-American History Month! Today we will continue our exploration of the USCIS History and Government questions and African American History.\xa0 Today we will talk about USCIS 100:74. Name one problem that led to the Civil War.\xa0 We will read about Q74 from the USCIS M638 quick civics lesson. Then we will talk about Dred Scott who went to the US Supreme Court to sue for his family's freedom.\xa0 We will also\xa0have two pop quizzes, so pay attention.\xa0 Let's get started.