Xi'an and Vienna are the great pre-maritime imperial capitals. Both sit far enough inland to control a continental empire safely. Both ruled at the intersection of multiple language families (Chinese-Turkic-Tibetan-Sogdian; German-Hungarian-Slavic-Italian). Both designed a court culture and a court music that the rest of their world copied. And both were dethroned by exactly the same long-term force: the rise of the maritime trade route, which moved gravity to the coasts.西安与维也纳，是大航海以前两大伟岸的内陆帝国之都。两地都足够内陆，可以安全地统御一片大陆帝国。两地都坐落在多语系交叉点（汉—突厥—藏—粟特；德—匈—斯拉夫—意）。两地都设计了被各自世界复制的宫廷文化与宫廷音乐。两地最终都被同一股长波击落——海洋商路崛起，文明引力迁往海岸。

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  Sit at a continental crossroads, not a coast.坐落在大陆十字路口，不在海岸。

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  Multilingual courts; the king's table heard 5 languages a night.多语种宫廷——一个晚上能听到五种语言。

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  A culinary and musical canon copied across the empire.一套被全帝国复制的饮食与音乐经典。

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  An imperial decline triggered by maritime trade routes.因海上商路兴起而导致的帝国式微。

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  Xi'an's Tang lasted 289 years; Vienna's Habsburgs 640.西安的唐朝 289 年；维也纳的哈布斯堡 640 年。

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  Vienna survives as a national capital; Xi'an as a regional one.维也纳至今仍是国都；西安如今是省会。

1. Imperial zenith帝国之巅
   CN

   Tang Chang'an — capital of a world-empire of 80m.唐长安——八千万人口世界帝国之都。

   EU

   Habsburg Vienna — capital of central Europe.哈布斯堡维也纳——中欧帝国之都。

2. Civilisational radiation文明辐射
   CN

   Silk Road conduit — Sogdians, Persians, Buddhists.丝路通道——粟特、波斯、佛教。

   EU

   Music + science capital — Mozart, Freud, Wittgenstein.音乐与科学之都——莫扎特、弗洛伊德、维特根斯坦。

3. Decline phase衰落期
   CN

   907 — Tang falls; capital shifts east.907——唐亡；首都东移。

   EU

   1918 — Habsburg empire dissolves.1918——哈布斯堡帝国解体。

Both cities now make a careful living from heritage tourism, classical performance, university research, and a quiet, well-mannered pride.两地如今都靠遗产旅游、古典演奏、大学研究，以及一种安静而克制的骄傲，过着体面的日子。

• Daily Life in Tang China
  Charles Benn · 2002
• Vienna and the Habsburgs
  Steven Beller · 2006