Bakewell Book and a motte and bailey castle was constructed in the 12th century. A market was established in 1254, and Bakewell developed as a trading centre. The Grade I listed five-arched bridge over the River Wye was constructed in the 13th century, and is one of the few surviving remnants of this earlier period. A chalybeate spring was discovered, and a bath house built in 1697. This led to an 18th-century bid to develop Bakewell as a spa town, in the manner of Buxton. The construction of the Lumford Mill by Richard Arkwright in 1777 was followed by the rebuilding
The purpose of a system is what it does be balanced by a more straightforwardly descriptive view. The term is used in many fields including biology and management. The purpose of a system is what it does The purpose of a system is what it does (POSIWID) is a systems thinking heuristic coined by Stafford Beer. Stafford Beer coined the term POSIWID and used it many times in public addresses. In his address to the University of Valladolid, Spain, in October 2001, he said "According to the cybernetician, the purpose of a system is what it does. This is a basic dictum. It stands for bald fact, which makes