The topics covered in this book include Dravidas, Three Tamil Academies, Lemuria or Kumari continent, Tolkapppiam and Tribes of Nilgris. They were published in the last 11 years in my two blogs. They are of enormous interest to Tamils. They have created big controversies in the olden days... The debate over those topics are still on. Foreign writers projected Dravidians as primitive and uncultured community... Max Muller said that the Aryans came into India from outside; in the same way Bishop Caldwell said that the Dravidians came from Mediterranean region. Mr. Kanakasabai Pillai who wrote 'Tamils 1800 years Ago', said that Tamils came into India from Mongolia. Some historians proposed that the Three Tamil Sangam are a myth; no two scholars agreed on these topics.