Christine:
Yes it was!
Well we could. We could do history and people again; I'm sure there would be plenty of scope; the trouble would be remembering if we are repeating ourselves.
Or we could do something to do with geography, such as A-Z names of rivers (whether in North America only, or worldwide). Or A-Z to do with jewelry & piercing terminology (clasp, pendant, clamp, septum, monroe, etc.)
Or whatever...