| 51091 | May.03 | Birth | 1994 – Lindsay Bushman, American actress |
| 51092 | May.03 | Birth | 1995 – Zach Sobiech, American singer-songwriter (d. 2013) |
| 51093 | May.03 | Birth | 1996 – Mary Cain, American runner |
| 51094 | May.03 | Birth | 1996 – Noah Munck, American actor |
| 51095 | May.03 | Birth | 1996 – Domantas Sabonis, Lithuanian basketball player |
| 51096 | May.03 | Birth | 1997 – Ivana Jorović, Serbian tennis player |
| 51097 | May.03 | Birth | 2006 – Mutya Orquia, Filipina actress |
| 51098 | May.03 | Death | 1152 – Matilda of Boulogne (b. 1105) |
| 51099 | May.03 | Death | 1270 – Béla IV of Hungary (b. 1206) |
| 51100 | May.03 | Death | 1294 – John I, Duke of Brabant (b. 1252) |
| 51101 | May.03 | Death | 1481 – Mehmed the Conqueror, Ottoman sultan (b. 1432) |
| 51102 | May.03 | Death | 1524 – Richard Grey, 3rd Earl of Kent, English peer (b. 1481) |
| 51103 | May.03 | Death | 1598 – Anna Guarini, Italian singer (b. 1563) |
| 51104 | May.03 | Death | 1606 – Henry Garnet, English priest and author (b. 1555) |
| 51105 | May.03 | Death | 1679 – James Sharp, Scottish archbishop (b. 1613) |
| 51106 | May.03 | Death | 1693 – Claude de Rouvroy, duc de Saint-Simon, French courtier (b. 1607) |
| 51107 | May.03 | Death | 1704 – Heinrich Ignaz Franz Biber, Czech-Austrian violinist and composer (b. 1644) |
| 51108 | May.03 | Death | 1724 – John Leverett the Younger, American lawyer, academic, and politician (b. 1662) |
| 51109 | May.03 | Death | 1750 – John Willison, Scottish minister and author (b. 1680) |
| 51110 | May.03 | Death | 1752 – Samuel Ogle, English-American captain and politician, 5th Governor of Restored Proprietary Government (b. 1692) |
| 51111 | May.03 | Death | 1758 – Pope Benedict XIV (b. 1675) |
| 51112 | May.03 | Death | 1763 – George Psalmanazar, French-English author (b. 1679) |
| 51113 | May.03 | Death | 1764 – Francesco Algarotti, Italian philosopher, poet, and critic (b. 1712) |
| 51114 | May.03 | Death | 1779 – John Winthrop, American mathematician, physicist, and astronomer (b. 1714) |
| 51115 | May.03 | Death | 1793 – Martin Gerbert, German historian and theologian (b. 1720) |
| 51116 | May.03 | Death | 1839 – Ferdinando Paer, Italian composer (b. 1771) |
| 51117 | May.03 | Death | 1856 – Adolphe Adam, French composer and critic (b. 1803) |
| 51118 | May.03 | Death | 1910 – Howard Taylor Ricketts, American pathologist (b. 1871) |
| 51119 | May.03 | Death | 1916 – Tom Clarke, English-Irish activist (b. 1858) |
| 51120 | May.03 | Death | 1916 – Thomas MacDonagh, Irish poet, playwright, and activist (b. 1878) |