1880 births

Louis Hémon (12 October 1880 – 8 July 1913), was a French writer, best known for his novel Maria Chapdelaine.

Léonce Joseph Perret (14 March 1880 – 12 August 1935) was a prolific and innovative French film actor, director and producer. He also worked as a stage actor and director. Often described as avant-garde for his unorthodox directing methods, Perret introduced innovative camera, lighting and film scoring techniques to French cinema.
Perret began his career as a relatively undistinguished stage actor. He was recruited to the film industry by the Gaumont Film Company. His numerous short films gained significant accolade in French cinematography. Until his emigration to the United States in 1917, he was a fixture of the Gaumont Film Company. On American soil, he produced several popular films, the most notable being Lest We Forget (N'oublions jamais) in 1918.
After returning to France, he directed the successful Koenigsmark in 1923. His film Madame Sans-Gêne (1925), starring Gloria Swanson, was the first joint Franco-American film production. In addition, Perret collaborated with many of the French and American idols of his generation such as Abel Gance, Gloria Swanson, Gaby Morlay, René Cresté, Arletty, Suzanne Grandais, Mae Murray, and Huguette Duflos.

Jacques Thibaud (French pronunciation: [ʒak tibo]; 27 September 1880 – 1 September 1953) was a French violinist.

Sir Ernest Oppenheimer (22 May 1880 – 25 November 1957), was a diamond and gold mining entrepreneur, financier and philanthropist, who controlled De Beers and founded the Anglo American Corporation of South Africa.

Gabriel Voisin (5 February 1880 – 25 December 1973) was a French aviation pioneer and the creator of Europe's first manned, engine-powered, heavier-than-air aircraft capable of a sustained (1 km), circular, controlled flight, which was made by Henry Farman on 13 January 1908 near Paris, France. During World War I the company founded by Voisin became a major producer of military aircraft, notably the Voisin III. Subsequently, he switched to the design and production of luxury automobiles under the name Avions Voisin.

Juan Alberto March Ordinas (4 October 1880 – 10 March 1962) was a Spanish business magnate, arms and tobacco smuggler, banker and philanthropist.
Closely associated with the Nationalist side during and after the Spanish Civil War, March was the wealthiest man in Spain and the sixth richest in the world. Throughout his life, he accumulated labels such as "the Rockefeller of Spain" or "the last pirate of the Mediterranean". At his death in 1961, Time called him "the Iberian Croesus".Born into a humble family of peasants in Mallorca, he was expelled from school at an early age and began helping his father with his pig farming business while smuggling tobacco from Spanish Morocco. During the Mediterranean Theatre of World War I, March was involved in an international affair after he gave supplies to a fleet of submarines of the Austria-Hungary in his island of Cabrera. This action cost him the expropriation of the island by the Government of Spain acting on behalf of Winston Churchill, at the time First Lord of the Admiralty. In 1916, he founded Trasmediterránea, an important shipping company that strengthened March's naval outreach. He gained political protection from Primo de Rivera and established Banca March to finance part of his business ventures, including Franco's coup d'état and most of the Nationalist effort. For a short period of the Second Spanish Republic, he was jailed due to financial irregularities and illegal activities, including tobacco and arms trafficking. He managed to escape prison by bribing a Civil Guard and fleeing to Gibraltar.In 1955, he set up his eponymous foundation of philanthropy and sciences, similar to the Rockefeller or Carnegie foundations. Around the same time, an elderly March uttered his famous "I am so rich, that I do not even know how rich I am". He died in March 1961 from sustained injuries caused by a road accident in Madrid.
The March family under his patriarchy had a strong influence in the financial, social and cultural aspects of European affairs in the 20th century, and it played an almost equally important role as the Rothschild family. Today, the Marches are among the richest in Spain, reported to be worth over US$5 billion.

Arturo Bocchini (Italian pronunciation: [arˈturo bokˈkini]; 12 February 1880 – 20 November 1940) was an Italian civil servant, who was appointed Chief of the Police under the Fascist regime of Benito Mussolini. Bocchini held the office from September 1926 until his death in November 1940, becoming a key figure in the Italian regime.
He was the head both of the regular police (State Police) and the secret police (OVRA) which was a pervasive national security agency that operated at all levels of Italian society. Bocchini only reported directly to the Duce and operated autonomously without interference from the National Fascist Party and the state prefects. His power within the government led to him being called the "Vice Duce".

Louis Charles Breguet (2 January 1880 in Paris – 4 May 1955 in Saint-Germain-en-Laye, Île-de-France) was a French aircraft designer and builder, one of the early aviation pioneers.