And Q told the anon who dropped it to apply to the NSA. Good autism, anon!
Andrew Johnson 17th president. Took over after Lincoln assassination
17th Congress term was officially March 4, 1821, to March 4, 1823; Passed Tariff of Abominations that led directly to Civil War (see previous 17)
17th Amendment made Senators a popular choice instead of a State's choice; effectively disenfranchised States of any Federal power, adopted 1913
All of the 17s above deal directly with US going to war with itself and loss of State power. (Civil War was really about State v Federal power)
Spoiler those, anon.