Harold Jeffreys
- Favourite Briton.

Born in Durham, County Durham
Born on 22nd of April 1891
Died on 18th of March 1989

Sir Harold Jeffreys was a scientific polymath whose work included geophysics (he was reader in that subject at Cambridge for 15 years, one major idea of his in that field being that the earth’s core is liquid), the study of earthquakes, meteorology, mathematics (including work on probability theory) and astrophysics, where he theorised that Mercury may have been an escaped satellite of Venus.

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The Seven Years' War Starts - 1756, W.G. Grace Scores his Hundredth Hundred - 1895, Relief of Mafeking - 1900
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