Complex sentence: Historians have usually discounted the importance of the Panopticon because although Bentham drew up the plan, very few were actually built.Foucault claimed that this missed the point: the idea of the Panopticon became used in many different settings in diverse ways.
Split into simpler sentences: Historians have usually discounted the importance of the Panopticon because although Bentham drew up the plan, very few were actually built. Foucault believed that this missed the point: the idea of the Panopticon became used in many different settings in diverse ways.