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The Hawaiian swimmer won Olympic golds in 1912 and 1920. The figure is taken from Encyclopaedia Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

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Duke Kahanamoku took surfing to the world

The Hawaiian swimmer won Olympic golds in 1912 and 1920

Duke Kahanamoku won the 100 metres freestyle at the 1912 and 1920 Olympics. He used his fame to demonstrate surfing on beaches in the United States, Australia and New Zealand, and is often called the father of modern surfing. He gave a well-known demonstration at Freshwater Beach in Sydney in 1914.

Duke Kahanamoku in his late teens — credited to Sandra Kimberley Hall Archive · Public domain · source

Where this comes from

Encyclopaedia Britannica

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Tags: surfing, swimming, hawaii

Duke Kahanamoku took surfing to the world: the short answers

Where does this come from, and can I check it?: The Hawaiian swimmer won Olympic golds in 1912 and 1920. The figure is taken from Encyclopaedia Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a sports fact?: Yes. It sits on the Sports shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.