Ferdinand Jacob Lindheimer (May 21, 1801 – December 2, 1879) was a German Texan botanist who spent his working life on the American frontier. In 1936, Recorded Texas Historic Landmark number 1590 was placed on Lindheimer's grave.
Gustav Albert Lortzing (23 October 1801 – 21 January 1851) was a German composer, librettist, actor and singer. He is considered to be the main representative of the German Spieloper, a form similar to the French opéra comique, which grew out of the Singspiel.
Adolphe-Théodore Brongniart (French: [adɔlf teodɔːʁ bʁɔ̃ɲaːʁ]) FRS FRSE FGS (14 January 1801 – 18 February 1876) was a French botanist. He was the son of the geologist Alexandre Brongniart and grandson of the architect, Alexandre-Théodore Brongniart. Brongniart's pioneering work on the relationships between extinct and existing plants has earned him the title of father of paleobotany. His major work on plant fossils was his Histoire des végétaux fossiles (1828–37). He wrote his dissertation on the Buckthorn family (Rhamnaceae), an extant family of flowering plants, and worked at the Muséum national d'Histoire naturelle in Paris until his death. In 1851, he was elected a foreign member of the Royal Swedish Academy of Sciences. This botanist is denoted by the author abbreviation Brongn. when citing a botanical name.
Joseph Antoine Ferdinand Plateau (French pronunciation: [ʒozɛf ɑ̃twan fɛʁdinɑ̃ plato]; 14 October 1801 – 15 September 1883) was a Belgian physicist and mathematician. He was one of the first people to demonstrate the illusion of a moving image. To do this, he used counterrotating disks with repeating drawn images in small increments of motion on one and regularly spaced slits in the other. He called this device of 1832 the phenakistiscope.