Check out John Venn's haircuts throughout his career:
John Venn had many different haircuts during his lifetime. He was widely recognized as a world-class mathematician, philosopher, university teacher and computer scientist. Nevertheless, the English logician and philosopher was mainly known for his incomparable sense of fashion and his livable character. Before his demise at the age of 89 he was repeatedly in the spotlight of the press due to his marvelous hairstyles. Check out John Venn's famous looks right here:
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