13 November 1807. The first geological society in the world was inaugurated in a building on this site known as The Freemasons' Tavern

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Nick Harrison on Flickr
Nick Harrison on Flickr
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Nick Harrison on Flickr
Nick Harrison on Flickr
Spudgun67 on Wikimedia Commons
Spudgun67 on Wikimedia Commons

61-65 Great Queen Street, WC2B 5DA, London
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by Geological Society of London

Colour: purple

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