to lose almost all of their overseas territories. The later Cholas (1070–1279 CE) would still rule portions of Southern India. The Chola dynasty went into decline at the beginning of the 13th century with the rise of the Pandyan dynasty, which ultimately caused their downfall. The Cholas succeeded in building the greatest thalassocratic empire in the history of India, thereby leaving a lasting legacy. They established a centralized form of government and a disciplined bureaucracy. Moreover, their patronage of Tamil literature and their zeal for building temples has resulted in some of the greatest works of Tamil literature and architecture. The Chola kings were avid builders and envisioned the temples in their kingdoms not only as places of worship but also as centers of economic activity. A UNESCO world heritage site, the Brihadisvara temple at Thanjavur, commissioned by the Rajaraja Chola in 1010 CE, is a prime example for Cholar architecture. They were also well known for their patronage to art. The development of the specific sculpturing technique used in the 'Chola bronzes', exquisite bronze sculptures of Hindu deities built in a lost wax process was pioneered in their time. The Chola tradition of art spread and influenced the architecture and art of Southeast Asia. Origins There is very little written evidence for the Cholas prior to the 7th century CE. The main sources of information about the early Cholas are ancient Tamil literature of the Sangam Period, oral traditions, religious texts, temple and copperplate inscriptions. Later medieval Cholas also claimed a long and ancient lineage. The Cholas are mentioned in Ashokan Edicts (inscribed 273 BCE–232 BCE) as one of the Mauryan Empire's neighbors to the South (Ashoka Major Rock Edict No.13), who, thought not subject to Ashoka, were on friendly terms with him. There are also brief references to the Chola country and its towns, ports and commerce in the Periplus of the Erythraean Sea (Periplus Maris Erythraei), and in the slightly later work of the geographer Ptolemy. Mahavamsa, a Buddhist text written down during the 5th century CE, recounts a number of conflicts between the inhabitants of Sri Lanka and Cholas in the 1st century BCE. A commonly held view is that Chola is, like Chera and Pandya, the name of the ruling family or clan of immemorial antiquity. The annotator Parimelazhagar said: "The charity of people with ancient lineage (such as the Cholas, the Pandyas and the