The wool industry in this city, one of the world's largest producers of cloth, was famous throughout Europe as early as the 13th century. Business was further stimulated in the late 14th century by a local cloth merchant, Francesco di Marco Datini, who built his business, according to one of his surviving ledgers, "In the name of God and of profit." One thing that distinguishes Prato from other Italian towns of its size
is the presence of modern public art—most notably Henry Moore's mammoth, marble Square Form with Cut in Piazza San Marco. Most of Prato's major museums are closed Tuesday.