The winemaking tradition of Lombardy dates back to its settlement by Greeks from Athens along the Po river. Archaeological evidence suggest that these settlers traded wine with the Etruscans in nearby Tuscany. In the late 19th century, the Italian wine writer C.B. Cerletti wrote a book for the French market that described the wines of Italy. Of the wines of Lombardy, he noted that the Valtellina were still being made in a Greek style and the wines of Oltrepò Pavese were the preferred wines of the Milanese.