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  1. 1928 - Alexander Fleming discovers penicillin 1929 - Beginning of the Great Depression which lasted almost 10 years 1931 - The Statute of Westminster recognizes independence of. the dominions. 1931 - Great Depression leads to the formation of a national government of all three political parties under the leadership of Ramsay MacDonald.

  2. TIMELINE OF THE HUMAN CONDITION ... penicillin (Alexander Fleming, UK, 1928) ... global average life expectancy exceeds 60 years by 1973 → 70 years by 2008 and ...

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