About the day » Sunday June 30, 1918Calender converter

• Arie Ouwehand, Vlissingen († 1969)
• Adriana Cornelia Barentsen, Oost en West Souburg († 1918)
• Albert van der Plas, Katwijk, Zuid-Holland, Nederland († 2003)
• Arie Ouwehand, Vlissingen, Zeeland, Nederland († 1969)
• Alice Ernstdr. Wijsmuller, Eindhoven, Noord-Brabant, Nederland († 1997)
• Antoon Arnoldus DE GROOT, 's Gravenhage († 1993)
• Angelina Margaretha Francisca Antonia VAN DE MUIJSENBERGH, Tilburg, Noord Brabant, Netherlands († 1964)
• Aukje Booi, Drachten, gem. Smallingerland, Friesland, Nederland
• Bertha Maria Bles, Kelso, Scott, Missouri, United States
• Boyd Preston Stidham († 1919)

• Adriaan Frans Umbgrove (43), N.I. Batavia
• Berie L.[Buie) Jolley (25), Rutherford County, North Carolina
• Catharina Bovens (10), Amby
• Aldert Annes Terpstra (74), Tietjerk
• Tjoelker (0), Grijpskerk, Zuidhorn, Groningen, Nederland
• Antonie Vervat (57), Utrecht, Nederland
• Catharina Steffen (82), Boevange (LUX)
• Chritianus van Veggel (80), ·Äòs-Hertogenbosch
• Annigje Harmens Hoekstra (81), Assen (Drenthe)
• Alexander 1849 Bair (69), Chapelton, Clarendon, Jamaica

• 1913 » Alfonso López Michelsen, Colombian lawyer and politician, 24th President of Colombia († 2007)
• 1914 » Allan Houser, American sculptor and painter († 1994)
• 1914 » Francisco da Costa Gomes, Portuguese general and politician, 15th President of Portugal († 2001)
• 1917 » Lena Horne, American actress, singer, and activist († 2010)
• 1917 » Susan Hayward, American actress († 1975)
• 1917 » Willa Kim, American costume designer († 2016)
• 1919 » Ed Yost, American inventor of the modern hot air balloon († 2007)
• 1920 » Eleanor Ross Taylor, American poet and educator († 2011)
• 1921 » Washington SyCip, American-Filipino accountant († 2017)
• 1922 » Al Besselink, American professional golfer

• 1908 » Thomas Hill, American painter (b. 1829)
• 1913 » Alphonse Kirchhoffer, French fencer (b. 1873)
• 1916 » Eunice Eloisae Gibbs Allyn, American correspondent, author, and poet (b. 1847)
• 1917 » Antonio de La Gándara, French painter and illustrator (b. 1861)
• 1917 » Dadabhai Naoroji, Parsi intellectual, educator, cotton trader, and an early Indian political and social leader (b. 1825)
• 1919 » John William Strutt, 3rd Baron Rayleigh, English physicist and academic, Nobel Prize laureate (b. 1842)
• 1932 » Bruno Kastner, German actor, producer, and screenwriter (b. 1890)
• 1934 » Erich Klausener, German soldier and politician (b. 1885)
• 1934 » Gustav Ritter von Kahr, German lawyer and politician, Minister-President of Bavaria (b. 1862)
• 1934 » Karl Ernst, German soldier (b. 1904)

1. Johannes
2. Jan
3. Cornelis
4. Hendrik
5. Willem
6. Pieter
7. Gerrit
8. Petrus
9. Jacob
10. Jacobus
11. Adrianus
12. Wilhelmus
13. Albert
14. Gerardus
15. Hendrikus
16. Johan

1. Maria
2. Johanna
3. Anna
4. Cornelia
5. Elisabeth
6. Wilhelmina
7. Adriana
8. Catharina
9. Hendrika
10. Petronella
11. Aaltje
12. Jacoba
13. Geertruida
14. Helena
15. Grietje
16. Margaretha

• Koningin Wilhelmina (Huis van Oranje-Nassau) was from 1890 till 1948 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
• In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
• The Netherlands had about 6.6 million citizens.
• January 4 » The Finnish Declaration of Independence is recognized by Russia, Sweden, Germany and France.
• January 17 » Finnish Civil War: The first serious battles take place between the Red Guards and the White Guard.
• January 28 » Finnish Civil War: The Red Guard rebels seize control of the capital, Helsinki; members of the Senate of Finland go underground.
• March 31 » Massacre of ethnic Azerbaijanis is committed by allied armed groups of Armenian Revolutionary Federation and Bolsheviks. Nearly 12,000 Azerbaijani Muslims are killed.
• April 8 » World War I: Actors Douglas Fairbanks and Charlie Chaplin sell war bonds on the streets of New York City's financial district.
• August 29 » World War I: Bapaume taken by the New Zealand Division in the Hundred Days Offensive.

The temperature on June 30, 1918 was between 8.2 °C and 18.3 °C and averaged 13.3 °C. There was 3.5 hours of sunshine (21%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast.