1820 births

German philosopher, sociologist and economist (1820–1895)

English social reformer, statistician, and founder of modern nursing (1820–1910)

English philosopher and political theorist (1820–1903)

British novelist and poet (1820-1849)

American women's rights activist (1820-1906)

King of Sardinia (1849–1861) and King of Italy (1861–1878)

United States Army general (1820–1891)

civil engineer (1820–1872)

Eduard Douwes Dekker (2 March 182019 February 1887), better known by his pen name Multatuli (from Latin multa tulī, "I have suffered much"), was a Dutch writer best known for his satirical novel Max Havelaar (1860), which denounced the abuses of colonialism in the Dutch East Indies (today's Indonesia). He is considered one of the Netherlands' greatest authors.

Gaspard-Félix Tournachon (; 5 April 1820 – 20 March 1910), known by the pseudonym Nadar () or 'Félix Nadar,''''' was a French photographer, caricaturist, journalist, novelist and balloonist who was a proponent of heavier-than-air flight. In 1858, he became the first person to take aerial photographs. Photographic portraits by Nadar are held by many of the great national collections of photographs. His son, Paul Nadar, continued the studio after his death.

Swedish classical singer

Czech writer (1820-1862)

Irish physicist (1820–1893)

first ruler of the United Principalities of Moldavia and Wallachia

French Royal (1820–1883)

British illustrator, graphic humorist and political cartoonist, very good friends with Spencer Bradshaw (1820-1914)

Russian poet (1820-1892)

English novelist

First Lady of the United States (1820–1889)

French physicist (1820-1891)

French writer (1820-1889)

American astronomer

Belgian violinist and composer (1820-1881)

French astronomer (1820-1883)

Philosopher, academic, writer, translator, entrepreneur, social reformer and philanthropist (1820-1891)

French painter (1820-1876)

Russian historian (1820–1879)

19th century Christian hymnist

Princess of France (1820-1904)

Spanish lawyer, writer and feminist activist, editor (1820-1893)

Spanish author, editor (1820–1911)

Swedish 19th century prime minister (1820-1901)

Duchess of Saxe-Coburg and Gotha

Czech painter (1820-1871)

Dutch orientalist (1820-1883)

Russian composer (1820–1871)

German classical scholar and philologist (1820-1885)

Swedish 19th century prime minister (1820-1894)

King of Tahiti (1820–1827)

President of Bolivia (1820-1871)

Danish artist (1820–1908)

French chemist and mineralogist (1820-1886)

President of Liberia (1820-1885)

English writer on music and director of the Royal College of Music (1820-1900)

Slovak poet and translator (1820–1872)

Armenian Catholic priest, historian, and poet (1820–1901)

United States Army general (1820-1863)

American politician (1820-1891)

Catholicoi of Armenia (1820–1907)

German missionary and African explorer (1820-1876)

President of Venezuela (1820-1870)

Montenegrin military commander, diplomat and poet (1820-1867)

Germanic prince (1820–1884)

Two Sicilian Royal (1820–1861)

son of King William II of the Netherlands (1820–1879)

Portuguese singer (1820–1846)

Brazilian writer (1820-1882)

Scottish orientalist (1820–1889)

American journalist

British expedition artist (1820-1875)