April 21

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Births

• Iwan Petrowitsch Kulibin was born on 21st April, 1735 in Nizhny Novgorod.
• Philippe Samuel LeCoultre was born on 21st April, 1780 in Le Chenit.
• Louis Fortin was born on 21st April, 1797 in Saint-Nicolas d'Aliermont.
• Auguste Audemars was born on 21st April, 1806.
• Julien Hilaire Rodanet was born on 21st April, 1810 in Rochefort, Charente-Maritime.
• Cyprien (Paulin) Paquet was born on 21st April, 1817 in Saint-Nicolas d'Aliermont.
• Éléontine-Olive Denis was born on 21st April, 1835 in Saint-Nicolas d'Aliermont.
• Hippolyte-Adonis Dumouchel was born on 21st April, 1836 in Saint-Nicolas d'Aliermont.
• Charles Henri Meylan was born on 21st April, 1842 in Le Sentier.
• Karl Wilhelm Höhnel was born on 21st April, 1885 in Altenberg (Saxonia).
• Eberhard Baron was born on 21st April, 1937 in Wangern, Kreis Breslau.

Deaths

• Peter Apian died on 21st April, 1552.
• Carl Kinzing died on 21st April, 1840.
• Jacques-Philogome Petiteville died on 21st April, 1871 in Saint-Nicolas d'Aliermont.
• Marie-Eugênie Auzout died on 21st April, 1881 in Saint-Nicolas d'Aliermont.
• Charles-Armand Queval died on 21st April, 1882 in Dampierre-Saint-Nicolas.
• Médéric-Augustin Sannier died on 21st April, 1912 in Saint-Nicolas d'Aliermont.
• Carl Maucksch died on 21st April, 1927.