Towards 1265, the Aztec civilization had food shortages, then the tlatoani Acatonalli, proposed to the council of elders a technique to face the situation, which consisted of gaining land from the lake using fillings of silt and stick. This is how the first Chinampas were born in the Valley of Mexico region to produce corn and other crops. Aztec empire. Tenochtitlan. Peoples of Mesoamerica