The Olmecs, Mayans, and Aztecs economies was largely based on agriculture and trade. The gradual domestication of successful food plants dating from 5300 BCE succeeding over a millennia gave rise to more or less permanent village farming life by about 1500 BCE. In addition to plants like corn, beans, squashes and chili peppers, cotton was also grown. The Olmecs, Mayans, and Aztecs would trade a variety of goods. With San Lorenzo and La Venta as their major trade centers, The Olmecs traded rubber balls and waterproof materials made of latex. For the Mayans, Tikal, Copan, and Cerros were major trade points. They would trade salt, cotton, spices, feathers, and cacao. In the Aztec capital, Tenochtitlan, Aztec traders would mainly trade gold, copper, and jade for things like chocolate, vanilla, and rubber. Later on, in the 16th century, the economy ended following the Spanish conquest, specifically with the fall of the Aztec empire in 1521. It was effectively integrated into the Spanish economy.