The Seven-Per-Cent Solution

December 26, 1929 in Etterbeek, Belgium

21 October 1933, Whitechapel, London, England, UK

8 July 1907, Dover, Kent, England, UK

1930 in Dundee, Scotland, UK

April 8, 1930 in Vienna, Austria

6 October 1932, Birmingham, Warwickshire, England, UK

3 January 1935, Chesterfield, Derbyshire, England, UK

5 March 1932, Czechoslovakia

14 September 1936, Hamilton, Scotland, UK

5 March 1939, Hampstead, London, England, UK

22 May 1907, Dorking, Surrey, England, UK

23 April 1922, Henley-on-Thames, Oxfordshire, England, UK

30 January 1937, Greenwich, London, England, UK

29 May 1928, Berlin, Germany

January 25, 1945 in Santa Monica, California, USA

29 August 1928, Bournemouth, Dorset, England, UK

26 April 1940, Islington, London, England, UK

5 January 1931, San Diego, California, USA

22 November 1936, Nottingham, England, UK

1931, West Ham, London, England, UK

11 April 1932, Cleveland, Ohio, USA

26 March 1934, New York City, New York, USA

7 February 1904, Kensington, London, England, UK