01 Mar 1936 - Berlin May 26, 2019 5:26:28 GMT 1 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Diarist on May 26, 2019 5:26:28 GMT 1 German Minister of Postal Affairs Paul Freiherr von Eltz-Rübenach opened the first videophone conversation.Source: "Tageseinträge für 1. März 1936". chroniknet. Retrieved August 16, 2015.