 On July 3, 1766, Cumberland County was partitioned from Albany County to cover all territory to the northern and eastern limits of the colony, including Windsor County, most of Windham County, and parts of Bennington and Rutland counties in present-day Vermont.On June 26, 1767, Albany County regained all of Cumberland County.On March 19, 1768, Albany County was re-partitioned, and Cumberland County restored.