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Acta Diruna is published in Rome. It is regarded as the first published newspaper.
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Guglielmo Marconi sent and received the first known radio signal in Italy in 1895. Four years later, he beamed the signal across the English Channel for the first time. (Date is approximate)
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Alexander Graham Bell made the first telephone call in January of 1915.
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PCGG radio in the Hauge, The Netherlands becomes the first commercial radio broadcast network. PCGG was on the air until November of 1924.
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"The Queen's Messenger" was broadcasted live on NBC, and is considered the first live television broadcast. The broadcast aired from Radio City Studios in New York City.
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Ray Tomlinson of ARPANET set the first email in late 1971. The exact words of the message are unknown. (Exact date is approximate)
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Motorola executive Martin Cooper made the first call from a mobile phone on April 3rd, 1973. The phone weighed 1.1 kg and was 23 cm long.