Third-class passengers making use of the deck chairs on the Canadian Pacific liner Duchess of Bedford during a transatlantic voyage in 1931.

Photo by Edward G Malindine/Hulton Archive via Getty Images  Photo 1 of 7 in Deck Chairs, Tuberculosis, and the Titanic: The Unexpected Origins of a Summertime Staple

Deck Chairs, Tuberculosis, and the Titanic: The Unexpected Origins of a Summertime Staple

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Third-class passengers making use of the deck chairs on the Canadian Pacific liner Duchess of Bedford during a transatlantic voyage in 1931.

Photo by Edward G Malindine/Hulton Archive via Getty Images