Adolf "Adi" Dassler started to produce his own sports shoes in his mother's wash kitchen in Herzogenaurach, Bavaria, after his return from World War I.
In 1924, his brother Rudolf "Rudi" Dassler joined the business which became Gebrüder Dassler Schuhfabrik (Dassler Brothers Shoe Factory) and prospered.
The pair started their venture in their mother's laundry,but at the time, electricity supplies in the town were unreliable, and the brothers sometimes had to use pedal power from a stationary bicycle to run their equipment.
By the 1936 Summer Olympics, Adi Dassler drove from Bavaria on one of the world's first motorways to the Olympic village with a suitcase full of spikes and persuaded U.S. sprinter Jesse Owens to use them, the first sponsorship for an African American.
Following Owens's haul of four gold medals, his success cemented the good reputation of Dassler shoes among the world's most famous sportsmen.
Letters from around the world landed on the brothers' desks, and the trainers of other national teams were all interested in their shoes. Business boomed and the Dasslers were selling 200,000 pairs of shoes each year before World War II.
Late in World War II, the shoe factory shifted to production of the Panzerschreck anti-tank weapon.
Both brothers joined the Nazi Party, but Rudolf was slightly closer to the party. During the war, a growing rift between the pair reached a breaking point after an Allied bomb attack in 1943 when Adi and his wife climbed into a bomb shelter that Rudolf and his family were already in: "The dirty bastards are back again," Adi said, apparently referring to the Allied war planes, but Rudolf was convinced his brother meant him and his family.
After Rudolf was later picked up by American soldiers and accused of being a member of the Waffen SS, he was convinced that his brother had turned him in.
The brothers split up in 1947,with Rudi forming a new firm that he called Ruda – from Rudolf Dassler, later rebranded Puma,and Adi forming a company formally registered as adidas AG (with lower case lettering) on 18 August 1949.
The acronym All Day I Dream About Sport, although sometimes considered the origin of the adidas name, was applied retroactively, which makes it a backronym. The name is actually a portmanteau formed from "Adi" (a nickname for Adolf) and "Das" (from "Dassler").
