| 45031 | April 18 | Death | 2013 – Ilona Edelsheim-Gyulai, Hungarian-English wife of István Horthy (b. 1918) |
| 45032 | April 18 | Death | 2013 – Cordell Mosson, American bass player (Parliament-Funkadelic) (b. 1952) |
| 45033 | April 18 | Death | 2013 – Steuart Pringle, English general (b. 1928) |
| 45034 | April 18 | Death | 2013 – Vytautas Šapranauskas, Lithuanian actor (b. 1958) |
| 45035 | April 18 | Death | 2013 – Goran Švob, Croatian philosopher and author (b. 1947) |
| 45036 | April 18 | Death | 2013 – Storm Thorgerson, English graphic designer (b. 1944) |
| 45037 | April 18 | Death | 2013 – Anne Williams, English activist (b. 1951) |
| 45038 | April 18 | Death | 2014 – Guru Dhanapal, Indian director and producer (b. 1959) |
| 45039 | April 18 | Death | 2014 – Sanford Jay Frank, American screenwriter and producer (b. 1954) |
| 45040 | April 18 | Death | 2014 – Deon Jackson, American singer-songwriter (b. 1946) |
| 45041 | April 18 | Death | 2014 – Eduard Kosolapov, Russian footballer (b. 1976) |
| 45042 | April 18 | Death | 2014 – David McClarty, Northern Irish politician (b. 1951) |
| 45043 | April 18 | Death | 2014 – Brian Priestman, English conductor and academic (b. 1927) |
| 45044 | April 18 | Death | 2014 – Dylan Tombides, Australian footballer (b. 1994) |
| 45045 | April 18 | Death | 2015 – Roger Lobo, Macanese-Hong Kong businessman and politician (b. 1923) |
| 45046 | April 18 | Death | 2015 – Erwin Waldner, German footballer (b. 1933) |
| 45047 | April 18 | Holiday and observance | Army Day (Iran) |
| 45048 | April 18 | Holiday and observance | Christian feast day:CorebusEleutherius and AntiaGaldino della SalaMolaise of LeighlinPerfectusPlato of SakkoudionApril 18 (Eastern Orthodox liturgics) |
| 45049 | April 18 | Holiday and observance | Independence Day (Zimbabwe), celebrates the independence of Zimbabwe from the United Kingdom in 1980. |
| 45050 | April 18 | Holiday and observance | International Day For Monuments and Sites (International) |
| 45051 | April 18 | Holiday and observance | Invention Day (Japan) |
| 45052 | April 19 | Event | 65 – The freedman Milichus betrayed Piso's plot to kill the Emperor Nero and all the conspirators are arrested. |
| 45053 | April 19 | Event | 531 – Battle of Callinicum: A Byzantine army under Belisarius is defeated by the Persians at Ar-Raqqah (northern Syria). |
| 45054 | April 19 | Event | 797 – Empress Irene organizes a conspiracy against her son, the Byzantine emperor Constantine VI. He is deposed and blinded. Shortly after Constantine dies of his wounds, and Irene proclaims herself basileus. |
| 45055 | April 19 | Event | 1012 – Martyrdom of Ælfheah in Greenwich, England. |
| 45056 | April 19 | Event | 1529 – Beginning of the Protestant Reformation: After the Second Diet of Speyer bans Lutheranism, a group of rulers (German: Fürst) and independent cities protests the reinstatement of the Edict of Worms. |
| 45057 | April 19 | Event | 1539 – Charles V and Protestants signs Treaty of Frankfurt. |
| 45058 | April 19 | Event | 1608 – In Ireland, O'Doherty's Rebellion is launched by the Burning of Derry |
| 45059 | April 19 | Event | 1677 – The French army captures the town of Cambrai held by Spanish troops. |
| 45060 | April 19 | Event | 1713 – With no living male heirs, Charles VI, Holy Roman Emperor, issues the Pragmatic Sanction of 1713 to ensure that Habsburg lands and the Austrian throne would be inherited by his daughter, Maria Theresa (not actually born until 1717). |