Day #9: What year did the Chicago River reverse its flow?
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Added: 1 year ago
From: jenknoedl
Views: 136
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  • In 1900, the river's flow was reversed in order to keep Lake Michigan clean.

    drozek2007 1 year ago

  • @drozek2007 you got it!

    jenknoedl 1 year ago

  • @jgiakoumis Ding! Ding! You win!

    jenknoedl 1 year ago

  • Comment removed

    needgraphics 1 year ago

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