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The Han dynasty (206 BCE – 220 CE) of early imperial China, divided between the eras of Western Han (206 BCE – 9 CE, when the capital was at Chang'an), the Xin dynasty of Wang Mang (r. 9–23 CE), and Eastern Han (25–220 CE, when the capital was at Luoyang, and after 196 CE at Xuchang), witnessed some of the most significant advancements ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 17 January 2025. Imperial dynasty in China (202 BC – 220 AD) "Eastern Han" and "House of Liu" redirect here. For the Five Dynasties-era kingdom, see Northern Han. For other uses, see House of Liu (disambiguation). Han 漢 202 BC – 9 AD; 25–220 AD (9–23 AD: Xin) The Western Han dynasty in 2 AD ...
The Chinese astronomer Geng Shouchang of the Han dynasty (202 BC – 220 AD) invented it separately in China in 52 BC, and the Han dynasty polymath Zhang Heng (78–139 AD) was the first to apply motive power using a set of complex gears rotated by a waterwheel which was powered by the constant pressure head of an inflow clepsydra clock, the ...
With the description in Han Ying's written work of 135 BC (Han dynasty), the Chinese were the first to observe that snowflakes had a hexagonal structure. Oiled garments left in the tomb of Emperor Zhenzong of Song (r. 997–1022), pictured here in this portrait, caught fire seemingly at random, a case which a 13th-century author related back to ...
Outraged by this embargo, Modu Chanyu planned to attack Han. When the Xiongnu invaded Taiyuan in 200 BCE and were aided by the defector King Xin of Han (韓 / 韩, not to be confused with the ruling Han 漢 dynasty, or the general Han Xin), Gaozu personally led his forces through the snow to Pingcheng (near modern Datong, Shanxi). [38]
According to the History of Later Han Dynasty (25–220 AD), this seismograph was an urn-like instrument, which would drop one of eight balls to indicate when and in which direction an earthquake had occurred. [12] On June 13, 2005, Chinese seismologists announced that they had created a replica of the instrument. [12]
In 269, during the Jin dynasty, Emperor Wu summoned the descendants of famous Han dynasty officials (e.g. Xiao He, Cao Shen) to the imperial court so that he could confer honorary titles on them. When Zhuge Liang's descendants did not show up, Emperor Wu sent his officials to find them.
The Han dynasty general Ma Yuan (14 BC – 49 AD) is recorded as having made a raised-relief map of valleys and mountains in a rice-constructed model of 32 AD. [34] Shen Kuo's largest atlas included twenty three maps of China and foreign regions that were drawn at a uniform scale of 1:900,000. [ 6 ]