Constructed language creators

French philosopher, mathematician, and scientist (1596–1650)

British writer and journalist (1903–1950)

German mathematician and philosopher (1646–1716)

John Ronald Reuel Tolkien was an English writer and philologist. He was the author of the high fantasy works The Hobbit (1937) and The Lord of the Rings (1954–55).

Czech statesman, playwright, and former dissident, the last president of Czechoslovakia and the first president of the Czech Republic (1936–2011)

Polish-Jewish physician and inventor of Esperanto (1859-1917)

Estonian teacher and linguist (1867–1948)

American fantasy and science fiction author (1929–2018)

Baltic German chemist (1853–1932)

American writer (1920–1986)

Australian musician, singer and composer

English writer and composer (1917–1993)

Georges Prosper Remi (; 22 May 1907 – 3 March 1983), known by the pen name Hergé ( ; ), from the French pronunciation of his reversed initials RG, was a Belgian comic strip artist. He is best known for creating The Adventures of Tintin, the series of comic albums that are considered one of the most popular European comics of the 20th century. He was also responsible for two other well-known series, Quick & Flupke (1930–1940) and The Adventures of Jo, Zette and Jocko (1936–1957). His works were executed in his distinctive ligne claire drawing style.

Italian mathematician (1858–1932)

Polish novelist (born 1948)

Russian writer (1885–1922)

Scottish writer (1954–2013)

French logician, mathematician, philosopher and linguist (1868–1914)

Danish linguist (1860–1943)

German Catholic priest (1831–1912)

English novelist best known as the author of Watership Down

American child prodigy (1898-1944)

American novelist and editor (1930–1999)

British writer, mathematician, essayist and autistic savant

British zoologist, statistician, science writer (1895–1975)

Secretary of the Royal Society and Bishop of Chester

American science fiction and fantasy writer (1931–2019)

influence in the development of Ido (1855-1935)

German-American linguist and translator (1906-1970)

American author and literary critic (born 1942)

American psychologist (1952-2021)

American linguist

English linguist, philosopher, writer (1889–1957)

author (1907–1993)

Dutch mathematician (1905–1990)

Croatian Catholic missionary, theologist, linguist and pan-Slavist (1618-1683)

American conlanger, writer, and artist (born 1981)

volapükist from the Netherlands (1865-1957)

Dutch translator

anarchist and inventor (1847–1914)

1787-1862 French author and musician

Volapuk scholar

sociologist and science fiction author (1921–2000)

Irish writer

English linguist (1932-2020)

Canadian composer (1948–1983)

American linguist and writer (1936-2015)

British linguist, critic, fiction writer

French musician

American writer (1942–2025)

American linguist (1912–2000)

imposter princess (1791–1864)

American communications professor and linguist

chemical engineer, inventor of Blissymbolics (1897–1985)

Brazilian writer

French writer (1679–1763)

American author

Argentine painter (1887–1963)

Italian writer and translator

French mathematician and linguist (1868–1943)