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What year was cement made?
The history of cement can be traced back to Dadiwan people in Qin 'an, China, 5000 years ago. They paved the ground similar to modern cement. Later, the ancient Romans used a mixture of lime and pozzolan in their buildings, which was very similar to modern lime-pozzolan cement.

1824, British engineer asp obtained the first cement patent, which marked the invention of cement. The invention of cement provided a material basis for the development of building engineering, which made it develop from land engineering to underwater and underground engineering. Cement has been invented for more than 100 years, and it has been the most widely used cementing material.

The earliest cement plant in China is 1889. Li Hongzhang, the Qing government, approved Tang, general manager of Kaiping Mining Bureau, to set up a cement plant in Tangshan, named "Tangshan Fine Cotton and Soil Plant", which was completed and put into operation on 1892. 1906, Yuan Shikai, Minister of Beiyang, ordered Zhou Congying to re-do it and renamed Qixin Lime Company. 1907, Tangshan Fine Miantu Factory was renamed as "Tangshan Qixin Lime Co., Ltd.". The cement trademark is designated as "Longma Negative Taiji Map" brand (commonly known as "continental brand"). Mapai Cement is the earliest brand in China.