Ohio State University history Professor Robert Davis describes the White Slave Trade as minimized by most modern historians in his book Christian Slaves, .\rbr\rbrBarbary Muslim slave raids Hundreds of thousands of Europeans were captured by Barbary pirates and sold as slaves in North Africa and the Ottoman Empire .\rbr\rbr\rbr\rbrList of Countries who have suffered slavery under Ottoman tyranny: Russia, Ukraine, Greece, Cyprus, Armenia, Belarus, Bulgaria, Romania, Moldova, .\rbr\rbrThe Ottoman penetration into Europe in the 1350s and their capture of Constantinople later in 1453 opened new floodgates for slave-trade from the European .