Download or read book On the Line written by Graham Dolan and published by . This book was released on 2003 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: An invaluable resource for those interested in the history of the celebrated Prime Meridian, this book is packed with information on the different ways in which 0° longitude has been marked across the world. It explains the origins of longitude and what the ability to determine it has meant for navigation.