Qin Jiushao

Qin Jiushao, courtesy name Daogu (道古), was a Chinese mathematician, meteorologist, inventor, politician, and writer of the Southern Song dynasty. He is credited for discovering Horner's method as well as inventing Tianchi basins, a type of rain gauge instrument used to gather meteorological data.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Who was born first?

• Qin Jiushao was born 5 years after Zakariya al-Qazwini
• Qin Jiushao was born 5 years before Busiri
• Qin Jiushao was born 11 years after Nikephoros Blemmydes
• Qin Jiushao was born 12 years before Campanus of Novara
• Qin Jiushao was born 13 years after Johannes de Sacrobosco

Timeline

1. Johannes de Sacroboscocirca 1195 – 1256
2. Nikephoros Blemmydes1197 – circa 1269
3. Zakariya al-Qazwini1203–1283
4. Qin Jiushao (this page)1208–1261
5. BusiriMarch 7, 1213 – 1294
6. Campanus of Novaracirca 1220 – September 13, 1296

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