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Memorial · Washington, DC

From the top floor of this building was sent on June 3, 1880 over a beam of light to 1325 L Street the first wireless telephone message in the history of the world...

d. 1947

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From the top floor of this building was sent on June 3, 1880 over a beam of light to 1325 L Street the first wireless telephone message in the history of the world...

Original summary by TributeLegacy, informed by public sources.

Source: OpenStreetMap contributors (ODbL). Geographic data via OpenStreetMap.

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Data sources

Location records are drawn from open, licence-clean datasets, kept here with attribution and gratitude to the people who maintain them.

  • Open Plaques, dedicated to the public domain (CC0). See openplaques.org.
  • Wikidata, available under the CC0 1.0 Universal dedication.
  • © OpenStreetMap contributors, available under the Open Database Licence.
  • Historic England, National Heritage List for England, used under the Open Government Licence v3.0. War memorial records are drawn from open community datasets (OpenStreetMap, Wikidata, NHLE) - never from the Commonwealth War Graves Commission, which is excluded.

Editorial descriptions, photography and tribute links are original TributeLegacy work, layered on top of the open data.

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