ASCHERSLEBEN, a circle in the government of Magdeburg and province of Saxony, in Prussia, formed out of a part of the principality of Halberstadt and the abbey of Quedlinburg. It contains 198 square miles, or 126,720 acres. Pop. in 1849, 49,816. The Bode and the Eine are the chief rivers; and on their banks the land is highly fertile, producing corn, flax, and rape-seed. Quedlinburg is the chief city of the circle.