Ok, here's an attempt at a plan to get Oxford up as fast as possible. Thanks a million to Renata who got the sheet up to date, allowing me to look forwards instead.
The five towns we'll use for this in my plan are those most likely to produce lots of research - Yo, Pura, Kwa, uMgung and Ulundi.
Yo: detailed in a previous post. Builds Axe (T140), Monastery (T142) and Colosseum (T145) interspersed with Sankore. Builds Uni as soon as Edu comes in, completed T152. Sankore completed T160, immediately starts Oxford which completes T170.
Pura: Builds Temple (T143) with whip, then Uni (T160) with whip.
Kwa: Builds Library (T145), then one turn of research (T146) then starts Uni on T146 when we get Edu. Chop one forest and whip two pop to get Uni on T160. Could chop two and whip one, or chop none and whip three.
uMgung: Whip one pop to complete Library on T147, then start Uni. Chop-mine the hill near the cows on T156 at the latest, then whip 3 pop for Uni on T160.
Ulundi: Very much dependent on what pop Ulundi is when we capture, and what buildings that remain to us. Assuming we capture on T141 with pop 4, it will come out of resistance on T146 with 3 pop remaining. If we retain both Granary and Lighthouse, we can build a Library on T152 and whip 4 pop for a Uni on T160. If we lose either one of the buildings then we must chop a forest to make it in time. If we lose both, we must chop three forests, which makes it tricky business.
I'll put up the sheet with data-copies after dinner.