You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Humanism

Context:
In China, Yellow Emperor is regarded as the humanistic primogenitor.[citation needed] Sage kings such as Yao and Shun are humanistic figures as recorded.[citation needed] King Wu of Zhou has the famous saying: "Humanity is the Ling (efficacious essence) of the world (among all)." Among them Duke of Zhou, respected as a founder of Rujia (Confucianism), is especially prominent and pioneering in humanistic thought. His words were recorded in the Book of History as follows (translation):[citation needed]

Question:
What early adopter and developer of is associated with Confucianism?

Duke of Zhou