Passage: The rock shelters and caves of Bhimbetka have a large number of paintings. The oldest paintings are found to be 30,000 years old, but some of the geometric figures date to as recently as the medieval period. The colors used are vegetable colors which have endured through time because the drawings were generally made deep inside a niche or on inner walls. The drawings and paintings can be classified under seven different periods.

Question: How old are the oldest paintings?
30,000 years old