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Jia Dan

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description Jia Dan Overview

Jia Dan was a Chinese scholar, cartographer, and government official who lived during the Tang dynasty in the 8th and early 9th centuries. He is most notable for creating the Hainei Huayi Tu, an extensive map that documented the Chinese empire and its surrounding regions. His work synthesized geographical knowledge from earlier texts and the reports of diplomats and merchants. Jia Dan's contributions provided a foundational framework for historical Chinese geography and cartography.

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What did Jia Dan's Hainei Huayi Tu show?

The Hainei Huayi Tu mapped Tang China alongside foreign regions known through diplomacy, trade, and earlier geographical records. Jia Dan presented the large map to Emperor Dezong in 801.

Does Jia Dan's original map still exist?

The original Hainei Huayi Tu is lost. Its influence survives indirectly in later works, including the Huayi tu engraved on a stone stele in 1136 during the Southern Song period.

Why did Jia Dan include places beyond China?

Jia Dan was interested in the roads and maritime routes connecting the Tang empire with neighboring states. His geographical writing covered routes reaching toward Central Asia, India, the Persian Gulf, and other foreign regions.

How was Jia Dan connected to the Tang government?

Jia Dan was more than a mapmaker: he was a Tang scholar and senior government official. Access to diplomatic reports and administrative records helped him compile geographical information beyond what a private traveler could observe.