May 15 is the 135th day of the year, 136th in leap years. There are 230 days left in the year.
Hallvard, Halvor (see Holidays)
1701 - Spanish Succession War begins.
1756 - The Seven Years' War breaks out in Europe, when Britain declares war on France.
1811 - Paraguay declares independence from Spain.
1776 - The Battle of Les Cèdres in the American Revolutionary War begins.
1851 - Rama IV is crowned King of Thailand.
1918 - The Finnish Civil War ends.
1940 - McDonald's opens its first restaurant in San Bernardino, California.
1940 - The first nylon stockings are sold in the United States.
1943 - Joseph Stalin dissolves the Comintern.
1948 - Egypt, Transjordan, Lebanon, Syria, Iraq, and Saudi Arabia attack Israel as a prelude to the Arab-Israeli War.
1991 - Édith Cresson becomes France's first female Prime Minister.
1914 - The anniversary exhibition at Frogner 1914 opens (closes September 11).
1919 - Grand Hotel (Molde) burns to the ground, killing six people.
1937 - The tram accident in Sannergata in Oslo. One person dies.
1953 - Princess Ragnhild marries Erling Lorentzen.
1973 - Wolves and bears are protected throughout Norway.
1994 - The Norwegian Aviation Museum is opened by Harald V.
See more who were born on 15 May in Category: Births on 15 May.
1838 - Nicolae Grigorescu, Romanian painter (d. 1907)
1838 - Hilary Majewski, Polish architect (d. 1892)
1848 - Carl Wernicke, German physician and psychiatrist (d. 1905)
1859 - Pierre Curie, French scientist (d. 1906)
1864 - Vilhelm Hammershøi, Danish painter (d. 1916)
1879 - Ernst Schultz, Danish athlete (d. 1906)
1898 - Egil Andersen Hylleraas, Norwegian physicist (d. 1965)
1909 - James Mason, British actor (d. 1984)
1914 - Tenzing Norgay, Nepalese sherpa (d. 1986)
1915 - Jens Christian Hauge, Norwegian politician, opponent during World War II (d. 2006)
1915 - Johan Castricum, Dutch Franciscan priest (d. 1999)
1915 - Paul Samuelson, American economist (d. 2009)
1916 - Vera Gebuhr, Danish actress (d. 2014)
1918 - Eddy Arnold, American musician (d. 2008)
1920 - Nasrallah Boutros Sfeir, Lebanese cardinal (d. 2019)
1921 - Anders Hagen, Norwegian archaeologist (d. 2005)
1928 - Gustav ter Jung, Norwegian businessman (d. 2007)
1930 - Jasper Johns, American artist
1934 - John Keegan, British historian, journalist and author (d. 2012)
1936 - May Bente Bonnevie, Norwegian visual artist
1936 - Ralph Steadman, British cartoonist and illustrator
1937 - Karin Krog, Norwegian jazz singer
1942 - Jusuf Kalla, Indonesian Vice President
1945 - Barnabas Sibusiso Dlamini, Swaziland Prime Minister (d. 2018)
1948 - Brian Eno, British musician
1951 - Frank Wilczek, American physicist and Nobel laureate in physics
1953 - Mike Oldfield, British musician
1955 - Hege Skjeie, Norwegian professor of political science (d. 2018)
1958 - Regina van Dinther, German politician
1959 - Einar Gelius, Norwegian parish priest
1959 - Ronald Pofalla, German Politician
1959 - John Arch, American vocalist
1962 - Gro Dahle, Norwegian poet and author
1964 - Levi Henriksen, Norwegian author
1967 - Simen Agdestein, Norwegian chess player and football player
1969 - Carsten Thomassen, Norwegian journalist (d. 2008)
1974 - Sveinung Eide, Norwegian doctor and musician
1975 - Ólafur Örn Bjarnason, Icelandic football player
1977 - Lydia Cheromei, Kenyan athlete
1979 - Gaute Grøtta Grav, host and reality participant
1981 - Patrice Evra, French-Senegalese footballer
1982 - Veronica Campbell, Jamaican athlete
1982 - Stefan Ishizaki, Swedish football player
1984 - Medhi Lacen, Algerian footballer
1985 - Carl Medjani, Algerian footballer
1986 - David Pedersen, Norwegian idol participant
1986 - Paul Obiefule, Nigerian footballer
1986 - Matías Fernández, Chilean footballer
1989 - Synnøve Solemdal, Norwegian biathlete