Song Dynasty and the Americas By macy_walker Dec 4, 1127 Population growth and agricultural growth -Song Dec 4, 1200 Inca begins Dec 4, 1200 The Aztecs arrived in the Valley of Mexico Dec 4, 1214 Battle of Beijing Dec 4, 1240 Mongols turn on the Song after destroying the Tanguts, long war ensues Dec 4, 1279 Mongol Attacks and the Fall of the Song Dynasty Dec 4, 1325 Cortez take Tenochtitlan Mar 2, 2022 Song Taizu the first emperor Mar 2, 2022 The Maya began abandoning cities Mar 2, 2022 Mayan Ends Period: Mar 2, 2022 to Dec 4, 1279 Song Dynasty Period: Mar 2, 2022 to Dec 4, 1325 The Americas