When was pascals triangle invented?

Answer 1

Pascal's triangle is the geometric arrangement of binominal coefficients in a triangle. The earliest depiction of such a triangle occured in the 10th century in the Chandas Shastra, an ancient Indian commentary written by Pingala, sometime between the 5th and 2nd centuries BC.
In mathematics, Pascal's triangle is a triangular array of the binomial coefficients. It is named after the French mathematician Blaise Pascal in much of the Western world, although other mathematicians studied it centuries before him in India, Iran, China, Germany, and Italy.

Answer 2

The oldest records of a Pascal's triangle date back to around 975 in India.