Revision as of 17:03, 29 December 2023 by Sfoskett(talk | contribs)(Created page with "{{Jahresmenue|J1=1861|J2=1862|J3=1863|Inhalt= * The house of Nicole et Capt in London, exhibits the first zero-return chronographs, the original idea of which is due to Henri Piguet of Le Brassus. * Achille Brocot publishes Calculation of Cogs by Approximation in Paris. }} Category:Year")