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Aloysius Lilius | |
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 Bust of Aloysius Lilius | |
| Born | c. 1510 |
| Died | 1576 (aged 65–66) |
| Known for | Primary author of the Gregorian calendar |
| Scientific career | |
| Fields | Mathematics, astronomy, medicine, chronology, philosophy |
Aloysius Lilius (c. 1510 – 1576), also variously referred to as Luigi Lilio or Luigi Giglio, was an Italian physician, astronomer, philosopher and chronologist, and also the "primary author" who provided the proposal that (after modifications) became the basis of the Gregorian Calendar reform of 1582.[1][2]
The crater Lilius on the Moon is named after him, as is the asteroid 2346 Lilio. In computer science, the Lilian date is the number of days since the adoption of the Gregorian calendar on 15 October 1582.
- ^ For name-variants and a few biographical details (including citation to a biography published in 1963) see page 206 in: A Ziggelaar (1983), "The papal bull of 1582 promulgating a reform of the calendar", pages 201–239 in G. V. Coyne (ed.), The Gregorian Reform of the Calendar: Proceedings of the Vatican conference to commemorate its 400th anniversary (Vatican City: Specola Vaticana), 1983.
- ^ Richard W. Beveridge (2003), "Friday the 13th and the Mathematics of the Gregorian Calendar", University of Maine, Archived 2007-05-19 at the Wayback Machine.