150th anniversary: Thomas Edison announced his invention of the phonograph, a device able to...
History · Anniversaries · Sun, November 21, 2027
1877: Thomas Edison announced his invention of the phonograph, a device able to record and play sound.
Also on Nov 21, 2027
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| Sun, Nov 21, 2027 | 50th anniversary: "God Defend New Zealand" became New Zealand's second national anthem, on equal... | in 14 mo |
Source, method and history
- Source
- Wikipedia
- How we know
- Wikipedia "On this day" selected anniversary, 150 years (1877 to 2027).
- Recurs
- annual
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- Changes
- None recorded.
Sources: official schedules and published calendars, linked on every event; computed dates name their rule. Refreshed nightly.