About the day » Saturday May 11, 1878Calender converter

• Afke Pool
• Aart (2) van den Bos, Sommelsdijk († 1918)
• Lambregts († 1879)
• Adrianus Marinus Louis (Ad) NUHN, Amersfoort, Utrecht, Nederland († 1942)
• Aagje LANGEREIS, Sloten, Noord-Holland, Nederland († 1963)
• Adriana Suzanna Midavaine, St.Laurens, Zeeland, Nederland († 1920)
• Adriaantje Maaike Jabaaij, Maasdam, Nederland († 1949)
• Adriana Vermeulen, Tienhoven († 1884)
• Aldina Margaretha Kroon, Den Helder, Noord-Holland, Nederland
• Adrianus Cornelis Zijlmans, Waspik († 1881)

• Anje Pieters Saaksema (83), Opende, Grootegast, Groningen, Netherlands
• Anna Maria Keulemans (72), Koningshooikt, Antwerpen, België
• Antonetta Rombout (30), Heeswijk
• Aaltje Cornelia van Hemert (81), Sleeuwijk
• Antonia Friderica Alexandrine Kerckhoff (47), Haselünne, Duitsland
• Alegonda Van Der Staaij (18), Wamel, Gelderland, Nederland
• van der Gaag (60), Delft
• Antonia Rombout (30), Heeswijk, Noord-Brabant, Nederland
• Antonia Rombout (30), Heeswijk, NL
• Antonia Friderica Alexandrine (Antonia) Kerckhoff (47), Haselünne, Niedersachsen, Deutschland

• 1869 » Archibald Warden, English tennis player († 1943)
• 1871 » Frank Schlesinger, American astronomer and author († 1943)
• 1875 » Harriet Quimby, American pilot and screenwriter († 1912)
• 1881 » Al Cabrera, Spanish-Cuban baseball player and manager († 1964)
• 1881 » Jan van Gilse, Dutch composer and conductor († 1944)
• 1881 » Theodore von Kármán, Hungarian-American mathematician, physicist, and engineer († 1963)
• 1888 » Irving Berlin, Belarusian-American pianist and composer († 1989)
• 1888 » Willis Augustus Lee, American admiral († 1945)
• 1889 » Paul Nash, British painter († 1946)
• 1890 » Willie Applegarth, English-American sprinter († 1958)

• 1848 » Tom Cribb, English boxer (b. 1781)
• 1849 » Juliette Récamier, French businesswoman (b. 1777)
• 1882 » Frederick Innes, Scottish-Australian politician, 9th Premier of Tasmania (b. 1816)
• 1889 » John Cadbury, English businessman and philanthropist, founded the Cadbury Company (b. 1801)
• 1908 » Charles Kingston, Australian politician, 20th Premier of South Australia (b. 1850)
• 1916 » Karl Schwarzschild, German astronomer and physicist (b. 1873)
• 1918 » George Elmslie, Australian politician, 25th Premier of Victoria (b. 1861)
• 1920 » James Colosimo, Italian-American mob boss (b. 1878)
• 1920 » William Dean Howells, American novelist, literary critic, and playwright (b. 1837)
• 1927 » Juan Gris, Spanish painter and sculptor (b. 1887)

• Koning Willem III (Huis van Oranje-Nassau) was from 1849 till 1890 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from November 3, 1877 to August 20, 1879 the cabinet Kappeijne van de Coppello, with Mr. J. Kappeijne van de Coppello (liberaal) as prime minister.
• The Netherlands had about 4.0 million citizens.
• February 19 » Thomas Edison patents the phonograph.
• March 3 » The Russo-Turkish War ends with Bulgaria regaining its independence from the Ottoman Empire according to the Treaty of San Stefano.
• May 25 » Gilbert and Sullivan's comic opera H.M.S. Pinafore opens at the Opera Comique in London.
• June 10 » League of Prizren is established, to oppose the decisions of the Congress of Berlin and the Treaty of San Stefano, as a consequence of which the Albanian lands in the Balkans were being partitioned and given to the neighbor states of Serbia, Montenegro, Bulgaria, and Greece.
• September 1 » Emma Nutt becomes the world's first female telephone operator when she is recruited by Alexander Graham Bell to the Boston Telephone Dispatch Company.
• December 31 » Karl Benz, working in Mannheim, Germany, filed for a patent on his first reliable two-stroke gas engine, and he was granted the patent in 1879.

The temperature on May 11, 1878 was about 14.3 °C. There was 9 mm of rain. The air pressure was 1 kgf/m² and came mainly from the west-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 95%.