Person Lacaille; Nicolas Louis de (1713 - 1762) Lacaille Nicolas Louis de Nicolas Louis de Lacaille 1713 - 1762 French Male Rumigny, near Rheims, France 15 March or 15 May 1713 Paris, France 21 March 1762

Astronomer Astronomy Geodesy Career: Friend of Jacques Cassini; was the first to determine accurately the length of an arc of the meridian; Professor of Mathematics, College Mazarin (1740); went to the Cape of Good Hope (1750-1754); determined the position of more than 10,000 stars Fellow 17/01/1760 Sources: Bulloch's Roll; DSB References: Sir Gavin de Beer and Max H Hey, 'The First Ascent of Mont Blanc' in NR 1954-55 vol 11 pp 236-255 Notes: Forenames hyphenated in DSB. Index to BR gives birth date as 15 May 1713; DSB gives 15 March 1713 International Standard Archival Authority Record for Corporate Bodies, Persons and Families - ISAAR(CPF) - Ottawa 1996 ISBN 0-9696035-3-3 National Council on Archives, Rules for the Construction of Personal, Place and Corporate Names, 1997 15 Mar or 15 May 1713 - 21 Mar 1762 NA7078 21/11/2001 Andyg Pmab 28/03/2023 RS_NET\JonathanB Yes aedc771a-894a-417c-93dc-3e9d33f7c6e2