By Dr. Devdutt Pattanaik - Author, Speaker, Illustrator, Mythologist
People often ask, if Aryabhatta invented zero, how did people count Ravana’s ten heads and Gandhari’s hundred heads before that. It is one of those foolish WhatsApp “mysteries” for people who do not realise number systems pre-dated the invention of the number zero. For example, ten can be written as X and hundred can be written as C using Roman numerals.






