Passage: In contrast, Northern and Central Italy had become far more prosperous, and it has been calculated that the region was among the richest of Europe. The Crusades had built lasting trade links to the Levant, and the Fourth Crusade had done much to destroy the Byzantine Roman Empire as a commercial rival to the Venetians and Genoese. The main trade routes from the east passed through the Byzantine Empire or the Arab lands and onward to the ports of Genoa, Pisa, and Venice. Luxury goods bought in the Levant, such as spices, dyes, and silks were imported to Italy and then resold throughout Europe. Moreover, the inland city-states profited from the rich agricultural land of the Po valley. From France, Germany, and the Low Countries, through the medium of the Champagne fairs, land and river trade routes brought goods such as wool, wheat, and precious metals into the region. The extensive trade that stretched from Egypt to the Baltic generated substantial surpluses that allowed significant investment in mining and agriculture. Thus, while northern Italy was not richer in resources than many other parts of Europe, the level of development, stimulated by trade, allowed it to prosper. In particular, Florence became one of the wealthiest of the cities of Northern Italy,  mainly due to its woolen textile production, developed under the supervision of its dominant trade guild, the Arte della Lana. Wool was imported from Northern Europe (and in the 16th century from Spain) and together with dyes from the east were used to make high quality textiles.

Question: What goods were brought through the region?
wool, wheat, and precious metals