I am very interested in the history of agriculture in Europe or other continents. I would like to know when and where the great changes to till-farming and other things have started. Can you give me some Internet-addresses of interest or a hint for a good book about this topic? -- <URL:mailto:Thilo.Pfennig@kiel.netsurf.de> - Kiel, Germany <URL:http://www.kiel.netsurf.de/homes/Thilo.Pfennig/>