Kaepernick refused to stand as a form of political expression—to protest, he said, the oppression of African-Americans by the police and others. The Supreme Court case arose out of a related First Amendment right—to exercise the freedom of religion. In 1943, at the height of the Second World War, the court heard a challenge by a Jehovah’s Witness family to the expulsion of their daughters, Marie and Gathie Barnette, from a school in West Virginia. The sisters had been punished for refusing to salute the flag and repeat the Pledge of Allegiance, something state law required of students.