[ultraluminous]

Arkansas was one of the last states to seceded the union. The very second sentence in the ordinance linked is "In addition to the well-founded causes of complaint set forth by this convention in resolutions adopted". You are more than welcome to look up those "causes and complaints" and let me know whether they are slavery related or not.

[Ancapistani]

While I don’t have time to do that right now, I will make a point to do so. I’m curious now, and haven’t enumerated all of the resolutions before.

I have read a ton of contemporary writings by the various politicians who signed Arkansas’s OoS, and with a couple of exceptions the vast majority claimed at the time to have supported secession in response to the military actions of the Union. There were relatively few slaveholders in the state at the time, and they were largely concentrated in the Delta, along the border with Mississippi.