The Stirrup was invented in China, no later than 322. Kama Sutra, dated between BC to c. 300 AD. Iron pillar of Delhi, India is the world's first Iron Pillar. Trigonometric functions: The trigonometric functions sine and versine originated in Indian astronomy. Codex Sinaiticus and the Codex Vaticanus Graecus 1209, are the earliest Christian bibles. Book of Steps, Syriac religious discourses.
The Stirrup was invented in China, no later than 322. Kama Sutra, dated between BC to c. 300 AD. Iron pillar of Delhi, India is the world's first Iron Pillar. Trig,onometric functions: The trigonometric functions sine and versine originated in Indian astronomy. Codex Sinaiticus and the Codex ?Vaticanus Graecus 1209, are the earliest Christ?ian bibles. Book of St:eps, Syriac religious discourses.