May 9th, 1428 was a Friday.
April 21st, 1428 - May 21st, 1428
Why not celebrate an alternative birthday? In 320 days, exactly on March 20th, 2025, people who were born on May 9th, 1428 will be 218,000 days old!
Founder of the German automobile company Adam Opel AG
*May 9th, 1837, Rüsselsheim am Main †September 8th, 1895, Rüsselsheim am MainNorwegian musicologist and educator
*May 9th, 1875, Ringsaker Municipality †August 5th, 1976, OsloSwiss classical philologist (1843-1918)
*May 9th, 1843, Zürich †August 27th, 1918, ZürichMember of the French nobility and co-founder of the first monastery of the Carmelites in France
*May 9th, 1427, Thouars †November 4th, 1485, BouguenaisFrench mathematician, inventor of descriptive geometry and father of differential geometry (1746-1818)
*May 9th, 1746, Beaune †July 28th, 1818, ParisBritish actress and politician (1936–2023)
*May 9th, 1936, Birkenhead †June 15th, 2023, BlackheathEmperor of the Ming Dynasty
*September 21st, 1428, Beijing †March 14th, 1457, BeijingCatholic cardinal (1428-1495)
*May 3rd, 1428, Guadalajara †January 11th, 1495, GuadalajaraJure uxoris 16th Earl of Warwick and suo jure 6th Earl of Salisbury (1428-1471)
*November 22nd, 1428, Norwich †April 14th, 1471, London Borough of BarnetQueen consort of Cyprus and Armenia
*February 3rd, 1428, Mystras †April 11th, 1458, NicosiaItalian Renaissance humanist
*January 1st, 1428, Teggiano †June 9th, 1498, RomeFixed holidays (Christian feast day, Commemoration of the end of the German occupation of the Channel Islands related observances, Victory Day observances, celebration of the Soviet Union victory over Nazi Germany) which are celebrated on May 9th.
M = 1000 | CD = 400 | X = 10 | IX = 9 | V = 5 | I = 1 |
Yes: 1428 is a leap year, therefore has a 29th of February with an additional leap day and a total of 366 days (instead of the usual 365 days in a normal year).