Read the article below its a good one ,its clearly shows the presence of INDIA in books from last 400-600 years.

http://booksearch.blogspot.com/2007/03/earth-viewed-from-books.html

This article shows the Earth viewed from books, where individual mentions of locations in books combine to yield another interpretation of the globe. The intensity of each pixel is proportional to the number of times the location at a given set of coordinates is mentioned across all of the books in Google Books Search.