https://en.wikipedia.org/wiki/Dassler_brothers_feud
WebThe Dassler brothers feud was a conflict between two brothers and shoe manufacturers, Adolf ("Adi") and Rudolf ("Rudi") Dassler, in the latter half of the 20th century. Their feud led to the creation of Adidas and Puma, two of the biggest shoe manufacturing companies, and started a long-lasting rivalry between the two companies, reflected in rivalries between …