The first mechanical clock invented was in China during the 8th century A.D. The first mechanical clocks in Europe began to appear in the early 14th century. More »

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It is believed that the first mechanical clock was invented in 723 or 725 A.D. by Chinese mathematician and monk Yi Xing, also spelled I Hsing. Rudimentary clocks existed prior to that in Europe, but they did not have th... More »

While devices to measure time have existed for thousands of years, the first mechanical clock was created in 725 by Yi Xing and Liang Lingzan in China. This was the first clock to use an escapement mechanism rather than ... More »

It is believed that the first mechanical clock was invented in 723 or 725 A.D. by Chinese mathematician and monk Yi Xing, also spelled I Hsing. Rudimentary clocks existed prior to that in Europe, but they did not have th... More »

The history of clocks includes timekeeping and sundials established thousands of years ago by ancient civilizations, water clocks in the second century B.C. and the tower clock in the 11th century A.D. Europeans built th... More »

The first historical record of paper's invention comes from around 105 A.D. in Han Dynasty China. Imperial court records indicate that this was the year paper was first presented to the Chinese Emperor; however, archaeol... More »

Gunpowder was invented in China in the ninth century during the reign of the Tang Dynasty. Though initially used to create fireworks, gunpowder was also used by the Chinese during a 10th-century war against the Mongols. More »

www.reference.com History Inventions