eric_
Emperor
Hezekiah did oversee the digging of a large tunnel under the city to a spring, which supplied them during a great seige, so that could be a possible UB idea.
Hrm...UB replaces aqueduct...interesting.
I like the idea of using ancient leaders but modern UU and UB as well, like the Merkava for UU and the Kibbutz for UB (replaces market or grocer and adds extra happiness or science)