The Story of Maps - Lloyd Arnold Brown - Google Books

http://books.google.de/books?id=Qh7nDfGm7BkC&pg=PA260&dq=greenwich+richmond+meridian#v=onepage&q=richmond&f=false

Early map making was characterized by secrecy. Maps were precious documents, drawn by astrologers and travelers, worn out through use or purposely destroyed. Just as men first mapped the earth indirectly, via the sun and stars, so must the history of maps…