Bhāskara II was a smart man. He has been called the greatest mathematician of medieval India. Also known as Bhāskarāchārya, he reached an understanding of number systems and solved equations that was several centuries ahead of European mathematical knowledge. He understood about zero and negative numbers, quadratic equations, spherical trigonometry, astronomy, cosmography and geography. His works represent the peak of mathematical and astronomical knowledge in the 12th century.

Great piece, and feels timely given the current state of Twitter also...