Who dated ?
Karol Szymanowski dated from ? until ?. The age gap was 21 years, 3 months and 0 days.
Sergei Diaghilev dated from ? until ?. The age gap was 31 years, 9 months and 3 days.

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Karol Szymanowski

born
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Sergei Diaghilev

Sergei Pavlovich Diaghilev ( dee-AG-il-ef; Russian: Серге́й Па́влович Дя́гилев, IPA: [sʲɪrˈɡʲej ˈpavləvʲɪdʑ ˈdʲæɡʲɪlʲɪf]; 31 March [O.S. 19 March] 1872 – 19 August 1929), also known as Serge Diaghilev, was a Russian art critic, patron, ballet impresario and founder of the Ballets Russes, from which many famous dancers and choreographers would arise.
Diaghilev's career can be divided into two periods: in Saint Petersburg (1898–1906) and while as an emigrant (1906–1929).
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