It is sad how much of the knowledge was destroyed due to ideology and religious fanaticism. I have a book here next to me with the title "Vedic Mathematics". Th

It is sad how much of the knowledge was destroyed due to ideology and religious fanaticism. I have a book here next to me with the title "Vedic Mathematics". The book is based of ancient Indian text. Reading the preface of the book it is clear that what is written in the book is just a small portion of a very large volume of work that was lost. It is sad that so much advance knowledge was lost.