François Arlaud was born on 18th May, 1724 in Geneva. Isaac-Ami Bordier was born on 18th May, 1768 in Geneva. François Timothée Cuendet was born on 18th May, 1772 in Lyon. Jean-François-Benjamin Troude was born on 18th May, 1784 in Saint-Nicolas d'Aliermont. Pierre-Antoine Dehame was born on 18th May, 1788 in Saint-Nicolas d'Aliermont. Geneviève-Julie Denis was born on 18th May, 1792 in Saint-Nicolas d'Aliermont. Henri Ernest Guillaume was born on 18th May, 1839 in Le Locle. Armand-Adolphe Croutte was born on 18th May, 1847 in Saint-Nicolas d'Aliermont. Désirée-Euphrasie Quetteville was born on 18th May, 1851 in Saint-Nicolas d'Aliermont. Oscar-Ernest Fihue was born on 18th May, 1854 in Saint-Nicolas d'Aliermont. François-Jules Folny was born on 18th May, 1856 in Saint-Nicolas d'Aliermont. Casper ten Boom was born on 18th May, 1864.
Abraham Arlaud died on 18th May, 1686 in Geneva. Hermann Achenbach died on 18th May, 1792. Johann Jakob Barthel died on 18th May, 1809. Augustin-Magloire Dumouchel died on 18th May, 1842 in Saint-Nicolas d'Aliermont. Jean-Baptiste-Benony Cellier died on 18th May, 1845 in Saint-Nicolas d'Aliermont. Jean-Pierre Piolaine died on 18th May, 1847 in Saint-Nicolas d'Aliermont. Jean-Jacques Conseil died on 18th May, 1870 in Saint-Nicolas d'Aliermont. John Nevil Maskelyne died on 18th May, 1917 in London. Alfred Helwig died on 18th May, 1974.