Final answer:
Friedrich Wilhelm Raiffeisen introduced cooperative credit societies to help farmers with fair credit, promoting self-help and mutual aid.
Step-by-step explanation:
Friedrich Wilhelm Raiffeisen was a German social reformer who aimed to improve the social situation of the farming population through the creation of cooperative credit societies. These societies provided a mutual aid framework for farmers, who could collectively borrow money at fair rates and terms, eliminating their dependency on exploitative lenders. Raiffeisen's vision was a departure from traditional banking practices and focused on the principle of self-help among members.