Why we should remember

Charles Babbage's Difference Engine marked the start of automatic computing. (Image by Getty Images)

Why we should remember… Charles Babbage's Difference Engine

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Coco Chanel in Paris, 1929

Why we should remember… How Chanel No 5 revolutionised the beauty business . This is a premium piece of content available to subscribed users.

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Dr DA Henderson examines children’s smallpox vaccination scars in Ethiopia

Why we should remember… Target Zero Day . This is a premium piece of content available to subscribed users.

A group of formerly enslaved African-Americans around the time of the US Civil War

Why we should remember… The Amnesty Act of 1872

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Anne Frank writing at her desk, c1942

Why we should remember… the translation of Anne Frank’s diary . This is a premium piece of content available to subscribed users.

British army soldiers face off against a group of Irish civilians

Why we should remember… Bloody Sunday