sentences:  At this time, according to the archeological excavations, the first settlement was founded on the Ostrówek – the northern part of the Pasieka Island in the middle of the Oder river.In the early 10th century it developed into one of the main "gords" of the West Slavic Opolans tribe.At the end of the century Silesia became part of Poland and was ruled by the Piast dynasty; the land of the pagan Opolanie was conquered by Duke Mieszko I in 992.