Recently found that if I did over-expand, courthouse could really help, even on Noble level. And monty's UB is really good on high food maps.
I chopped SH by 2600BC, but it didn't stop my initial expansion. 3 cities by 2000BC. Oracled CoL and self teched to Civil Service at around 300BC, then researched Construction and started war preparation.
Declared on Pacal on 175BC. And razed a low food city and kept the capital. City count up to 11 by 1AD as I started to systematically taking Pacal's city with Cat/Axe and Elephant combo. By 200AD, mayan was all gone.
Took some time digesting Mayan land, and waiting for the main stack to move to the southern front. Picked Capac as the next target as he was fast enough as a tech trader and was building wonders for me. Declared on Capac on 700AD, and by 1000AD, all inca's cities were either mine or razed. By then, I had knights.
I was pop rushing like crazy in almost every city. And was too happy so that even I opened up GA, i didn't switch into Caste System for generating more Great Persons until very late.
Declared on SB next, and he was gone by 1130AD. And I had already found the other continent and building massive Galleon fleet. Also took some cash upgrading all knights into Cuirassiers when I got MilTrad. Then invaded Joao first. This time, I took vessels because micro was very tedious by then. The war the other three took from 1240 to 1370 and there was a few turns of peace because I had to wait my stack to get through some non-road land to reach Izzy...
Tech wise, Lib to Communism at 1190AD, but the economy was very good. In the end, I've fully switched into farm/windmill/watermill/workshop economy with all of them were fully powered (Biology, Electricity, Communisim (SP+CS+GA)). I also managed to get 3 GP powered GA and another one from Taj. But failed in generating 4 different GP in time to get another one. anyway, the game was over and I had 7 turns of GA wasted... And I finished Railroad with 3200+ beaker per turn with a positive cash flow at 100% research.
I feel this game is much easier due to high food and many rivers. High food for monty is everything with CoL.