Aired: September 14, 2007 | Season: 1 | Episode: 4

Overview
Runtime: 60m
Directed by: Jeremy Jeffs
Written by: Michael Wood
Description
Michael Wood seeks out the achievements of the country's golden age, discovering how India discovered zero, calculated the circumference of the Earth and wrote the world’s first sex guide, the Kama Sutra. In the south, he visits the giant temple of Tanjore and sees traditional bronze casters, working as their ancestors did 1,000 years ago.