began its spread during the neolithic period and continues until the early medieval period in India, as well as being found in parts of West Asia and Egypt. There are many theories about the process of its creation, the most popular being the use of an inverted firing technique, or a simultaneous oxidation and reduction firing. Painted grey ware culture is a significant pottery style that has been linked to a group of people who settled in Sutlej, Ghagger, and the Upper Ganga/Yamuna Valleys, loosely classified with the early Aryans who migrated to India in the beginning of the Vedic period. It's also thought that the groups that introduced the painted grey ware culture also brought iron technology to the Indo-gangetic plains, making this pottery a momentous mark of the Northern Indian Iron Age. The style of grey-ware often includes clay wheel-thrown into a smooth texture, ash-grey in color, and often decorated with black ink, creating small circular patterns, sometimes spirals, swastikas, or sigmas. Grey-ware pottery is almost exclusively drinking ware, and tends to have three different forms: narrow-waisted, tall drinking glasses, middle-sized drinking goblets, and drinking vases with outturned lips. There was a distinct grey ware culture surrounding the establishment of the pottery, but while the culture is significant, grey ware has only made up 10–15% of found Vedic pottery, a majority of the pottery red ware, as grey ware pottery was seen as a “highly valued luxury”. Puranic chronology of the Vedic period The Puranic chronology, the timeline of events in ancient Indian history and mythology as narrated in post-Vedic Hindu texts such as the Mahabharatha, the Ramayana and the Puranas, envisions a much older chronology for the Vedic culture. In this view, the Vedas were received by the seven rishis thousands of years ago. The start of the reign of Manu Vaivasvate, the Manu of the current kalpa (aeon) and the progenitor of humanity, is dated by some as far back 7350 BCE. The Kurukshetra War, the background-scene of the Bhagavad Gita, which may relate historical events taking place ca. 1000 BCE at the heartland of Aryavarta, is dated in this chronology at 3100 BCE. See also History of India Historical Vedic religion Indus Valley civilisation Vedanga Indigenous Aryanism Notes References Sources Further reading Ancient India Ancient history of Pakistan Iron Age Asia Iron Age cultures of South Asia History of Punjab History of Sindh Indo-Aryan archaeological