<span />the earth was thought to be the center of the universe, rather than the sun
https://www.usatoday.com/story/news/nation-now/2018/02/08/column-why-america-cant-get-over-slavery-its-greatest-shame/1000524001/ check this site out it has some pretty good reasons you can use
It would be "Patrick Henry" who was not a Federalists, since Patrick Henry was in fact opposed to the ratification of the Constitution, which made him an "Anti-Federalist".
Yes it's true that the 13th Amendment abolished slavery in 1865 at the end of the Civil War.