Mathematics is considered the most dreaded subject. However it is extremely interesting and one should read about it. Had this subject not been interesting then some of the great physicist, doctors, lawyers, poets, story writers, etc., in their later life would not have turned to study it and made great discoveries in the field of mathematics. While mathematics itself may be a form idable subject for many, the lives and accomplishments of history’s greatest mathematicians are fascinating. This book is intended for people interested to know the heroic journey of those great mathematicians who have made important contribution to mathematics, through their ideas, teaching or in other ways. The main emphasis is on their work and achievement in the field of mathematics. I hope this book will serve adual purpose: firstly help students realize mathematics is not to be dreaded but helpful in achieving in other subjects; secondly help those who hate the subject respect it.