Indology is the study of India.
"Imagination is more important than knowledge"
-Einsten
Of all the recorded imaginations on the size of time and space Carl Sagan could locate, he is impressed the most by the one by ancient Indians[^1]. Indians visualised the possibilities of zero in the number system which revolutionised the thinking engines of the human brain like no other. Again it was Indians, a few thinkers from what is now Kerala, conceived Calculus[^2] The list is long and by no means confined to cosmology or Mathematics but extends to medicine, literature, political philosophy among others.
[^1]: Read the Chapter 'On the Edge of Forever' in Carl Sagan's 'Cosmos'
[^2]: Read the book The Secret Lives of Numbers: A Hidden History of Math's Unsung Trailblazers by Kate Kitagawa and Timothy Revell: Please note that Kitagawa is not an anybody!.We have our copy.