Ancient Mayan societies of Central America had a full written language, mathematics and advanced architecture.
Even though they were on our neighboring continent, they have not been studied nearly as much as societies in the Middle East. Economics and politics have held back archeology in the Americas. They are far most expensive to evacuate and not the birth place of Christianity.
While ruins of many lost cities are rumored to be under the overgrowth of the Central American rainforests, the terrain, bugs and rain make for hostile dig environments. Not as much written material survived. There are stone engravings.
The economics of studying region are changing. An improved version of lidar, a sensing technology, allows detailed images of overgrown artifacts from small airplane flyovers.
Archaeologists are concluding the Central American rainforest population of the Mayas was much bigger and their cities and economies more complex than believed previously. The era the vast cities ended mysteriously about the 10th century C. E. People dispersed and were later conquered by the Spaniards.
For decades, it has been rumored there remains a giant statue of the Monkey God somewhere in the rainforest. Presumably, this god or similar ones were worshipped until Christianity was introduced by the sword.
It’s ironic this sophisticated society existed “next door” at the same time as the birth of Christianity. That we now worship a God of Abraham instead of Monkey God seems the result of several accidents of history.