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Konrad Birkenstock develops the first anatomically shaped shoe last and a flexible arch support for factory-made shoes.

The first Birkenstock sandal, the Madrid model, is launched, marking the brand's shift from insoles to full footwear. birkenstockoffers

The "long story" of Birkenstock spans over 250 years, evolving from a local German shoemaking lineage into a multi-billion dollar global fashion icon. The brand's identity is anchored in its specialized "footbed," originally designed as a corrective orthopedic tool. the Madrid model