Qin and Han · Han remonstrance official and technical calculator

Chengma Yannian 乘馬延年

Attested BC 26

Passages: 2
Chapters: 1
Histories: 1

Overview

Chengma Yannian was a Han remonstrance official and technical calculator.

Life and dates

Attested activity

BC 26 河平三年
Dated from the passage context · Book of Han 38, passage 156

Career and standing

Grandee of Remonstrance 諫大夫
Held
Directly stated · Book of Han 38, passage 156

Places and affiliations

Polity Han 漢 · Relation Served
Strongly inferred · Book of Han 38, passage 156

Learning and skills

Skill calculation and cost-benefit analysis 明計算，能商功利
Directly stated · Book of Han 38, passage 158

References in the histories

Book of Han, Chapter 38Volume 29: Treatise on Rivers and Canals · 2 passages

宜遣焉及將作大匠許商、諫大夫乘馬延年雜作。 Yang Yan should be sent to work jointly with Xu Shang, superintendent of imperial works, and Chengma Yannian, grandee of remonstrance.

商、延年皆明計算，能商功利，足以分別是非，擇其善而從之，必有成功。」 Xu Shang and Yannian are both strong in technical calculation and cost-benefit assessment. They can sort right from wrong; choose the best option and success should follow."