(Q1292321)
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10. century
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Wikipedia(8 entries)
- arwiki تشانغ سيشون
- enwiki Zhang Sixun
- frwiki Zhang Sixun
- idwiki Zhang Sixun
- mgwiki Zhang Sixun
- mswiki Zhang Sixun
- shwiki Zhang Sixun
- zhwiki 張思訓
10th century Chinese astronomer and engineer