The Maya Postclassic Period (950-1521 CE) began after the abandonment of major Classic period cities. Activity shifted from the southern lowlands to the northern Yucatán Peninsula and the Guatemalan Highlands, with populations concentrating near permanent water sources. This era saw the rise of new political centers including Mayapan and Qʼumarkaj, increased militarization, and greater cultural influence from central Mexico. Chichen Itza initially dominated the north before declining in the 11th century, after which Mayapan emerged as the primary regional power until its abandonment around 1448.