6 comments on “Interesting Question of the Day – 13 August 2020
  1. Lily says:

    Wheels
    Please ignore my previous answer

  2. Nathan says:

    What Lily said. She is absolutely right.

  3. Nathan says:

    Which is to say, sails. The use of animal hides as clothing has been around for a long long time, and sails probably followed fairly shortly.