1866 births

André Dubosc (1866–1935) was a French stage and film actor.

Edmund Faustyn Biernacki (19 December 1866 in Opoczno – 29 December 1911 in Lwów) was a Polish physician.Biernacki was the first one to note a relationship between the sedimentation rate of red blood cells in a human blood sample and the general condition of the organism. This method, known as the Biernacki Reaction, is used worldwide to assess erythrocyte sedimentation rate (ESR), which is one of the major blood tests.

Joseph Sullivan (8 September 1866 – 13 February 1935) was a Scottish Labour Party politician who served as a Member of Parliament (MP) from 1922 to 1924, and from 1926 to 1931.

Victor Margueritte (1 December 1866 – 23 March 1942) was a French novelist. He was the younger brother of Paul Margueritte (1860–1918).

Enrique Simonet Lombardo (February 2, 1866 – April 20, 1927) was a Spanish painter.

Ève Lavallière (born Eugénie Marie Pascaline Fenoglio, 1 April 1866 – 10 July 1929) was a French stage actress and later a noteworthy Catholic penitent and member of the Secular Franciscan Order.

Gerrit van Houten (also known as Gerry Wood; 29 August 1866, in Groningen – 18 January 1934, in Santpoort) was a Dutch painter and artist.
The Van Houten family lived just outside the gates of the city of Groningen on the Damsterdiep canal. Although Gerrit would still recognize number 215, the house where he was born on 29 August 1866, its surroundings would seem most strange.
The layout of the house is much the same, with the water pump still in the kitchen, although it no longer works. The stable is now used for storage. A corridor and one of the rooms in the former office would still look familiar to Gerrit, because they are exactly as they were with the door panels that he himself painted.
The house belonged to the timber merchants and sawmill run by Gerrit's father Hindrik and Hindrik's brother Jakob. The sawmill ‘De Twee Reizigers’ stood next to the house on the Damsterdiep canal. Behind the house ditches had been dug; the timber was steeped in these to increase its durability. To the west were the city ramparts and the Steentilpoort gate; in all other directions fields as far as the eye could see.

Élisabeth Arrighi Leseur (16 October 1866 – 3 May 1914), born Pauline Élisabeth Arrighi, was a French mystic best known for her spiritual diary and the conversion of her husband, Félix Leseur (1861–1950), a medical doctor and well known leader of the French anti-clerical, atheistic movement. The cause for the beatification of Élisabeth Leseur was opened in 1934. Her current status in the process is that of a Servant of God.

Henri Fursy or Furcy (real name Henri Dreyfus, 26 February 1866 - 14 April 1929) was a French cabaret singer, director and lyricist.

Carlos Arniches Barreda (11 October 1866 – 16 April 1943) was a Spanish playwright, born in Alicante. His prolific work, drawing on the traditions of the género chico, the zarzuela and the grotesque, came to dominate the Spanish comic theatre in the early twentieth century.
After starting his career as a novelist and journalist, Arniches turned to theatre in 1888 with the publication of his first play, Casa editorial. Much of his work is set in lower-class Madrid and uses colloquial language, song, dance and music.Arniches was complimented in a 1935 interview by Federico García Lorca, often a scathing critic of contemporary Spanish theatre, as 'more of a poet than almost any of those who are writing theatre in verse at the moment'.Following the end of the Spanish Civil War, the social dramas of Carlos Arniches were among the relatively non-controversial plays allowed by the new government.