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1913
	instantia de: anno civil[], common year starting and ending on Wednesday[]
	parte de: annos 1910, Calendario gregorian
	;
	precedite per: 1912 , succedite per: 1914
	Commons: 1913

sin data precise

21 — Publication del prime enigma de parolas cruciate in le supplemento dominical Fun del jornal New York World. Le autor esseva le jornalista anglese Arthur Wynne (1862–1945).