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30-Second Twentieth Century: The 50 most significant ideas and events, each explained in half a minute 30-Second Twentieth Century: The 50 most significant ideas and events, each explained in half a minute
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Gert
Gert is on page 111 of 160
— Feb 22, 2026 08:20AM Add a comment
30-Second Twentieth Century: The 50 most significant ideas and events, each explained in half a minute

Gert
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— Feb 20, 2026 06:54AM Add a comment
30-Second Twentieth Century: The 50 most significant ideas and events, each explained in half a minute

Gert
Gert is on page 78 of 160
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30-Second Twentieth Century: The 50 most significant ideas and events, each explained in half a minute

Gert
Gert is on page 55 of 160
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30-Second Twentieth Century: The 50 most significant ideas and events, each explained in half a minute

Gert
Gert is on page 44 of 160
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30-Second Twentieth Century: The 50 most significant ideas and events, each explained in half a minute


Erica Moar
Erica Moar is on page 73 of 160
— Feb 11, 2025 05:55PM Add a comment
30-Second Twentieth Century: The 50 most significant ideas and events, each explained in half a minute

Erica Moar
Erica Moar is on page 54 of 160
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30-Second Twentieth Century: The 50 most significant ideas and events, each explained in half a minute

Erica Moar
Erica Moar is on page 32 of 160
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30-Second Twentieth Century: The 50 most significant ideas and events, each explained in half a minute

Esraa Gibreen
Esraa Gibreen is 71% done
Though it was named Spanish Flu, this catastrophic influenza epidemic’s exact origin has never been determined.
— Aug 05, 2024 01:32PM Add a comment
30-Second Twentieth Century: The 50 most significant ideas and events, each explained in half a minute

Esraa Gibreen
Esraa Gibreen is 44% done
Sputnik 1 was the first manmade satellite launched into Earth’s orbit, fired into space by the Soviet Union on 4 October 1957.
— Jul 26, 2024 10:20PM Add a comment
30-Second Twentieth Century: The 50 most significant ideas and events, each explained in half a minute

Esraa Gibreen
Esraa Gibreen is 33% done
Bushnell’s Law states that an enjoyable video game should be ‘easy to learn and difficult to master’.
— Jul 25, 2024 08:28PM Add a comment
30-Second Twentieth Century: The 50 most significant ideas and events, each explained in half a minute



















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