#Time 📆 October 22, 2015 #Paris 🇫🇷 and #Arlington 🇺🇸 had exchanged #wireless signals 📶 for the first time two years earlier, in 📆 1913, to measure the difference in longitude between the two cities. After the #SpeechTransmission in 📆 1915, it would then take more than 11 more years for the first two-way #transatlantic 🌊 call to take place https://time.com/4081211/transatlantic-speech-transmission-1915

Picture : #EiffelTower 1887 to 1889 https://commons.wikimedia.org/wiki/File:Jaillissement_Tour_Eiffel.gif