◆ On this day

January 27

3 sourced moments from January 27 in history: Edison Patents the Light Bulb (1880); Soviet troops liberate the Auschwitz concentration camp (1945); and Apollo 1 fire: the crew died of asphyxia, not burns (1967).

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3 things happened on January 27

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1967 Space · Space Exploration

Apollo 1 fire: the crew died of asphyxia, not burns

A 'non-hazardous' launch-pad rehearsal in a pure-oxygen cabin killed three astronauts in 1967 — and the hatch took 90 seconds to open.

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1945 History · War & Conflict

Soviet troops liberate the Auschwitz concentration camp

When the Red Army reached the gates, it found a few thousand survivors too ill to march — and the machinery of more than a million murders.

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1880 Technology · Inventions

Edison Patents the Light Bulb

A flimsy thread of carbon, glowing inside an airless glass bulb, became the patent that wired the modern world.

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