Complete the following sentence: It developed as a regional center of trade and crafts, located at the intersection of the Kalisz<unk>Głogów and Toruń<unk>Wrocław trade routes. During the Thirty Years' War, in 1628, Protestant refugees from German states settled in the town. <unk> <unk> <unk>
Swedish invasion of Poland in 1656, but soon recovered and famous fairs were held there.<unk> Swedish invasion of Poland in 1656, but soon recovered and famous fairs were held there.