Independent states unified under a weak central government would generally be part of a "confederate government," but of course the specific weakness of the central government can vary greatly.
Jim crow was not a real person but it was a phrase "Jim Crow" has often been attributed to "Jump Jim Crow<span>", a song-and-dance c</span>aricature<span> of blacks performed by white actor Thomas D.Rice</span><span> in b</span>lackface<span>, which first surfaced in 1832 and was used to satirize A</span>ndrew Jackson<span>'s populist policies</span>
A sect is a religious group that has its own beliefs and practices. Hope it help!