How did mechanical clocks change over time in ancient China?

What was the purpose of the mechanical clock in ancient China?

During the Song Dynasty in China, the mechanical clock was invented in 976 A.D. Chan Ssu-Hsun produced a mercury clock. It was the world's first functional mechanical clock. Mechanical clocks are significant because they were designed to tell time more precisely than water or sun clocks.

the american revolution was by the middle and upper class, and the french was by the lower and middle class.

president jefferson protested this interference in american trade. he sent james monroe to london to negotiate a treaty. jefferson wanted britain to stop taking sailors from american ships, and to stop interfering in the trade of neutral nations. monroe tried many times to discuss such an agreement. but the british foreign minister was always too busy to see him.

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