| 50791 | May.02 | Death | 2015 – Maya Plisetskaya, Russian-Lithuanian ballerina, choreographer, actress, and director (b. 1925) |
| 50792 | May.02 | Death | 2015 – Ruth Rendell, English author (b. 1930) |
| 50793 | May.02 | Holiday and observance | Anniversary of the Dos de Mayo Uprising (Community of Madrid, Spain) |
| 50794 | May.02 | Holiday and observance | Birth Anniversary of Third Druk Gyalpo, also Teachers' Day (Bhutan) |
| 50795 | May.02 | Holiday and observance | Christian feast day:Athanasius of Alexandria (Western Christianity)Boris I of Bulgaria (Bulgarian Orthodox Church)Germanus of NormandyJosé María RubioWaldebert (Roman Catholic Church)May 2 (Eastern Orthodox liturgics) |
| 50796 | May.02 | Holiday and observance | Flag Day (Poland) |
| 50797 | May.02 | Holiday and observance | National Education Day (Indonesia) |
| 50798 | May.02 | Holiday and observance | Teachers' Day (Iran) |
| 50799 | May.02 | Holiday and observance | The last day of the Festival of Ridván (Bahá'í Faith) |
| 50800 | May.03 | Event | 752 – Mayan king Bird Jaguar IV of Yaxchilan in modern-day Chiapas, Mexico assumes the throne. |
| 50801 | May.03 | Event | 1481 – The largest of three earthquakes strikes the island of Rhodes and causes an estimated 30,000 casualties. |
| 50802 | May.03 | Event | 1491 – Kongo monarch Nkuwu Nzinga is baptised by Portuguese missionaries, adopting the baptismal name of João I. |
| 50803 | May.03 | Event | 1715 – A total solar eclipse was visible across northern Europe, and northern Asia, as predicted by Edmond Halley to within 4 minutes accuracy. |
| 50804 | May.03 | Event | 1791 – The Constitution of May 3 (the first modern constitution in Europe) is proclaimed by the Sejm of Polish–Lithuanian Commonwealth. |
| 50805 | May.03 | Event | 1802 – Washington, D.C. is incorporated as a city. |
| 50806 | May.03 | Event | 1808 – Finnish War: Sweden loses the fortress of Sveaborg to Russia. |
| 50807 | May.03 | Event | 1808 – Peninsular War: The Madrid rebels who rose up on May 2 are executed near Príncipe Pío hill. |
| 50808 | May.03 | Event | 1815 – Neapolitan War: Joachim Murat, King of Naples is defeated by the Austrians at the Battle of Tolentino, the decisive engagement of the war. |
| 50809 | May.03 | Event | 1830 – The Canterbury and Whitstable Railway is opened. It's the first steam hauled passenger railway to issue season tickets and include a tunnel. |
| 50810 | May.03 | Event | 1837 – The University of Athens is founded in Athens, Greece. |
| 50811 | May.03 | Event | 1849 – The May Uprising in Dresden begins – the last of the German revolutions of 1848. |
| 50812 | May.03 | Event | 1855 – American adventurer William Walker departs from San Francisco with about 60 men to conquer Nicaragua. |
| 50813 | May.03 | Event | 1860 – Charles XV of Sweden–Norway is crowned king of Sweden. |
| 50814 | May.03 | Event | 1867 – The Hudson's Bay Company gives up all claims to Vancouver Island. |
| 50815 | May.03 | Event | 1877 – Labatt Park, the oldest continually operating baseball grounds in the world has its first game. |
| 50816 | May.03 | Event | 1901 – The Great Fire of 1901 begins in Jacksonville, Florida. |
| 50817 | May.03 | Event | 1913 – Raja Harishchandra the first full-length Indian feature film is released, marking the beginning of the Indian film industry. |
| 50818 | May.03 | Event | 1915 – The poem In Flanders Fields is written by Lieutenant Colonel John McCrae. |
| 50819 | May.03 | Event | 1920 – A Bolshevik coup fails in the Democratic Republic of Georgia. |
| 50820 | May.03 | Event | 1921 – West Virginia becomes the first state to legislate a broad sales tax, but does not implement it until a number of years later due to enforcement issues. |