I used to know that

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If you've forgotten the capital city of Chile; the basics of osmosis; how to solve a quadratic equation; the names of the Bennet sisters in Pride and Prejudice; who wrote the famous poem about daffodils; the use of a conjunction or the number of continents in the world, I Used to Know That will provide all the answers. A light-hearted and informative reminder of all the things that we learnt in school but have since become relegated to the backs of our minds, I Used to Know That features hundreds of important snippets of wisdom, facts, theories, equations, phrases, rules and sayings. A practical guide to turn to when an answer is eluding you, when helping a child with homework or preparing them for the new school year, or maybe just to brush up on trivia for the pub quiz. I Used to Know That covers English Language and Literature, Mathematics, Biology, Chemistry, Physics, History, Geography and General Studies, so never again will you find yourself stumped!