Not really. Wakanda's a little more open at home but still really strict about who gets in, so he's spent a decent amount of time in the west. I think he's got something like four PhDs, went to Oxford at some point, then after that he became king, about sixteen or seventeen years ago? A couple years before I met Steve, and it was a couple years after that that we met. Apparently he originally joined the Avengers to get an idea of their skills just in case, but he's been off and on since then, mostly when things look like they might affect Wakanda. At the moment I'm pretty sure he's moonlighting with the Ultimates who deal with the sort of galactic threat that needs more science and cosmic knowledge instead of just punching things.