Birth - 21 April 1921 (10 year anniversary) - David City, Butler County, Nebraska, United States of America

Death - 21 April 1913 (18 year anniversary) - Tiel, Gelderland, Nederland

Death - 21 April 1907 (24 year anniversary) - Arnhem, Gelderland, Nederland

Birth - 21 April 1906 (25 year anniversary) - Chadron, Dawes County, Nebraska, United States of America

Birth - 21 April 1896 (35 year anniversary) - Bad Windsheim-Külsheim, Bayern, Deutschland

Birth - 21 April 1883 (48 year anniversary) - La Ser, Wisconsin,

Death - 21 April 1859 (72 year anniversary) - Lingewaard-Bemmel, Gelderland, Nederland

Death - 21 April 1856 (75 year anniversary) - Groesbeek, Gelderland, Nederland

Birth - 21 April 1832 (99 year anniversary) - Groesbeek, Gelderland, Nederland

Birth - 21 April 1824 (107 year anniversary) - Antwerpen, Antwerpen, Belgique

Death - 21 April 1823 (108 year anniversary)

Death - 21 April 1819 (112 year anniversary) - Wegberg-Rickelrath, Nordrhein-Westfalen, Deutschland

Birth - 21 April 1809 (122 year anniversary)

Death - 21 April 1807 (124 year anniversary) - Düsseldorf-Kalkum, Nordrhein-Westfalen, Deutschland

Death - 21 April 1737 (194 year anniversary)

Marriage - 21 April 1881 (50 year anniversary) - Rheden, Gelderland, Nederland

Marriage - 21 April 1858 (73 year anniversary) - Düsseldorf-Hubbelrath, Nordrhein-Westfalen, Deutschland

Marriage - 21 April 1849 (82 year anniversary) - Wegberg, Nordrhein-Westfalen, Deutschland

Marriage - 21 April 1848 (83 year anniversary) - Den Helder, Noord-Holland, Nederland

Marriage - 21 April 1817 (114 year anniversary) - Niederkrüchten, Nordrhein-Westfalen, Deutschland

Marriage - 21 April 1810 (121 year anniversary) - Andernach, Rheinland-Pfalz, Deutschland

Marriage - 21 April 1769 (162 year anniversary) - Kevelaer-Wetten, Nordrhein-Westfalen, Deutschland