Next was Numerivs Cilo From Hispania Tarraconensis aged 53. He did nothing of consequence, though 20 years into his rule an ADA in Germania Superior developed the first mechanical timepiece, called a cloca, based on the slow unwinding of springs; the face’s upper hemisphere was devoted to day hours, and the bottom hemisphere for night hours. This set up regarding day and night hours proved unreliable since the day varies noticeably throughout the year in most provinces, so many thought at first that mechanical timepieces were a needless waste of effort to maintain. The cloca however had the advantage over sundials of not requiring a sun, to face north, or even it to be daytime; as well as better than water clocks with needing only a winding key to keep them running, they also were partiall