This Week in History By Cherie Preville May 5, 2001 1937 The Cincinnati Zoo opens its first air conditioned and humidified snake house.1953 Health benefits of a/c touted.1996 Survey looks at future of natural gas cooling. Share This Story Cherie Preville is Education and Products Editor. She can be contacted at 248-244-6496 or cheriepreville@achrnews.com. You must login or register in order to post a comment. Report Abusive Comment Thank you for helping us to improve our forums. Is this comment offensive? Please tell us why. Recent Comments Refrigerant Transition Heat Pumps Fail To Perform When... Hi, Rod -- I asked the wonderful folks... transporting A2L refrigerants, Thank you! Blog Roll Editors Blog Guest Blog Opinions