Completed the following sentence: The intercontinental streams of spices, gold and silver flowing in and out of the Portuguese factory transformed Antwerp overnight from a sleepy town into arguably the leading commercial and financial center of Europe in the 16th century, a position it would enjoy until its collapse in the mid-18th century, Antwerp was the largest city in Europe until its collapse in the mid-19th century, and the largest city in Europe until its collapse in the mid-19th century.
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