Reading the "Thesaurus & Encyclopaedia" section in the entry of Book 6 (Widow Kang) in the Years of Rice and Salt, I noticed several minor errors: 

"397 Kang Tongbi : Kang is probably 康, which means "health", and her name may have been inspired by Chinese feminist author Kang Tong-wei 康同薇, daughter of Kang Youwei. The third character would be pronounced "bi" in Japanese."

I believe there may have been a mix-up here. While Kang Tong-wei was the daughter of Kang Youwei (and was a Chinese feminist author), Kang Youwei also fathered several other daughters, one of which was called Kang Tong-bi (康同璧), yet another forerunner of contemporary Chinese feminism, like her sister Kang Tong-wei. Of course, it is possible that KSR was inspired by Kang Tong-wei and not Kang Tong-bi, though I find inspiration from the latter more plausible than from the former. 

"446 ren, yi, li : In Chinese these are 仁、義、禮. Confucius' three major precepts."

Not a correction, but an expansion. Ibrahim here says of the Five Constants (五常), yet here only three have been mentioned. Below I provide a revised version of the entry: 

"446 ren, yi, li, shi, xin: 仁 (benevolence/humaneness)、義 (righteousness/justice)、禮 (propriety/rites)、智 (wisdom/knowledge)、信 (faithfulness/trustworthiness), respectively. A typographic error must be noted, however: the pinyin for 智 is "zhi", not "shi". They are the core moral principles within Confucianism." 

"446 Tiando, rendao : 天道、人道 There's probably a typographical error here, as "tiando" should be "tiandao" in Chinese."

Minor correction: Should be 仁道 (benevolence), not 人道 (humanitarianism). 天道 means "Way of Heaven". 

"455 Dong Zhongshu : (c. 179-104 BC) His philosophical work Chunqiu fanlu 春秋豊露 is what is referred to in the novel."

Minor correction: Should be 春秋繁露, not 春秋豊露. The English name for this philosophical treatise by Dong Zhongshu (董仲舒) is the "Luxuriant Dew of the Spring and Autumn Annals". 

"455 Kang Yuwei : 康有薇; Also romanized as Kang Youwei (1858-1927). Does indeed speak of the Three Ages in his Commentary on the Evolution of Rites, and attempts to reconcile Western social history with Confucian descriptions of "the age of universal peace", "the age of approaching peace" and "the age of disorder". Kang Tongwei is his daughter. Note that in the real world, he lived and wrote far too late for Ibrahim, who writes around 1800, to have read him. (This is where KSR gnashes his teeth and mutters, "how did they find that!?")"

Just a minor correction: the Chinese name of Kang Youwei in our timeline is 康有為, not 康有薇. This is important because the character 薇 itself means rose in Chinese; hence, it is more often used for naming girls. 有為, on the other hand, is short for "有所作為" in Chinese, which means "to make a difference" or "to achieve something". Of course, it is possible (albeit slim) that Kang Youwei was called 康有薇 instead of 康有為, since Youwei was not Kang's original name; he was called Kang Zuyi (康祖詒) until 1895, when he changed it to motivate himself after successfully passing the jinshi (進士; lit. entered scholar) examination, the highest degree one can achieve in the imperial Chinese examinations.  

(Note: This is a repost. I have previously posted this in the KSR.info site forum.)