Cai Lun

Born in Guiyang Commandery around 50-62 CE, Cai Lun entered the imperial court at Luoyang by 75 CE as a chamberlain, later serving as imperial messenger and rising to the highest rank available to eunuchs under Emperor He in 88 CE. His role at the Palace Workshop put him in charge of crafting ceremonial weapons, but in 105 CE he unveiled his breakthrough: a papermaking process using tree bark, hemp waste, rags, and fishnets that quickly replaced bamboo and wooden slips across the empire. Wealth and imperial favor followed; by 114 CE he held the title of marquis and oversaw a scholarly edition of the Five Classics. When his patron, the empress dowager Deng, died in 121 CE, old crimes surfaced - he had once helped orchestrate the interrogation and subsequent suicide of Consort Song to secure a succession. Ordered to the Ministry of Justice and expecting execution, Cai poisoned himself in the capital where he'd spent nearly his entire adult life.