Darkspears and Draeneis.
None of those are original Human Kingdoms. I would say the original human kingdom was Arathor. Arathor (or the Arathorian Empire, Arathi Empire and the Empire of Arathor, was the first great human nation kingdom founded by a unification of the various tribes of the Eastern Kingdoms under the Arathi. It’s capital was Strom, now known as the fortress of Stromgarde.
kingdom’s plural
This is the only human armor I can find dating back to the Arathorian Era.
=https://wow.gamepedia.com/Ignaeus_Trollbane#/media/File:Ignaeus_trollbane_unused_model.jpg
Would look kinda odd on contemporary humans lol.
Worgen armor, now with camouflage.
Pandaren! xD
Nightelf!!