In Mesoamerica, the first millennium was a period of enormous growth known as the Classic Era (200 CE – 900 CE). Teotihuacan grew into a metropolis and its empire dominated Mesoamerica. In South America, pre-Incan, coastal cultures flourished, producing impressive metalwork and some of the finest pottery seen in the ancient world. In Western Asia, the first millennium saw a time of great advancement known as the Islamic Golden Age (700–1200 C.E).