All articles starting with J
20,615 articles
Johannes Fecht
Johannes Fecht (1636–1716) was a German Lutheran theologian who served as court preacher in Baden-Durlach and, from 1690, as professor of sacred theology at Rostock.
Johannes Fibiger
Johannes Andreas Grib Fibiger was a Danish physician and pathologist at Copenhagen University who won the 1926 Nobel Prize for a cancer-worm discovery later shown wrong.
Johannes Geiss
Johannes Geiss (1926–2020) was a German-Swiss experimental physicist at the University of Bern, best known for leading the Apollo Solar Wind Composition experiment on the Moon.
Johannes Gräff
Johannes Gräff is a Swiss neuroscientist who heads the Laboratory of Neuroepigenetics at EPFL in Lausanne, studying how epigenetic mechanisms govern learning, memory, and memory loss.
Johannes Gutenberg
Johannes Gutenberg, born Johannes Gensfleisch zur Laden zum Gutenberg, was a German printer from Mainz who developed movable type printing in Europe and printed the Gutenberg Bible.
Johannes Haushofer
Johannes Haushofer is a development and behavioral economist known for large-scale randomized cash-transfer experiments in Kenya, the 2014 Science paper on the psychology of poverty, and his viral CV of Failures.
Johannes Haussleiter
Johannes Haussleiter (1851–1928) was a German Lutheran theologian who held the New Testament chair at Greifswald and wrote an 1891 study opening the πίστις Χριστοῦ debate.
Johannes Hendrikus van Marwijk Kooy
Johannes Hendrikus van Marwijk Kooy (1847–1916) was a Dutch brewer and businessman who co-founded the Amstel Brewery in Amsterdam in 1870 with his brother-in-law Charles de Pesters.
Johannes Herrmann
Johannes M. Herrmann is a German cell biologist, professor at RPTU Kaiserslautern-Landau since 2006, known for the mitochondrial disulfide relay and ER-SURF pathways; he joined the Leopoldina in 2020.
Johannes Hjelmslev
Johannes Hjelmslev, born Johannes Trolle Petersen, was a Danish mathematician, professor at the University of Copenhagen from 1917, known for his 1907 axiomatic reconstruction of plane geometry.
Johannes Hoffmeister
Johannes Hoffmeister (c. 1509/10, Oberndorf am Neckar – 1547, Günzburg) was a German Augustinian theologian and preacher who defended Catholicism against Luther in Reformation-era Germany, earning the nickname "Anti-Luther".
Johannes Honterus
Johannes Honterus, also known as Johannes Honter, was a Transylvanian Saxon humanist and church reformer who introduced the Reformation in Kronstadt and printed the first map of Transylvania.
Johannes Høsflot Klæbo
Johannes Høsflot Klæbo is a Norwegian cross-country skier, born in Oslo in 1996, with a record 11 Olympic gold medals, including all six men's events at Milano Cortina 2026.
Johannes Itten
Johannes Itten was a Swiss expressionist painter and teacher who led the Bauhaus preliminary course from 1919 to 1923 and wrote The Art of Color (1961).
Johannes Janssen
Johannes Janssen (1829–1891) was a German Catholic priest and historian, professor at the Frankfurt gymnasium, whose History of the German People recast late medieval Germany as flourishing and drew fierce Protestant criticism.
Johannes Jørgensen
Johannes Jørgensen, born and died in Svendborg, was a Danish lyric poet and critic who introduced Symbolism to Denmark and converted to Catholicism in 1896.
Johannes Kepler
Johannes Kepler was a German astronomer and mathematician, 1571 to 1630, whose three laws of planetary motion, drawn from Tycho Brahe's observations, later underpinned Newton's theory of gravitation.
Johannes Knipstro
Johannes Knipstro (1497–1556) was a German Lutheran reformer who went from Franciscan friar to first General Superintendent of Pommern-Wolgast, consolidating Lutheranism in the Duchy of Pomerania.
Johannes Kotkas
Johannes Kotkas (Johannes Kotkas), Estonian-born Soviet Greco-Roman heavyweight wrestler (1915–1998); Olympic gold Helsinki 1952, European champion 1938, 1939, 1947, 1953 world silver.
Johannes Krause
Johannes Krause, born 1980, is a German archaeogeneticist who directs the Department of Archaeogenetics at the Max Planck Institute for Evolutionary Anthropology in Leipzig, and won the 2026 Leibniz Prize.
Johannes L. Bos
Johannes L. Bos, known as Hans Bos, is a Dutch molecular cancer researcher, professor at UMC Utrecht from 1991, known for showing Ras mutations are frequent in human tumors and for discovering Epac.
Johannes Lehmann
Johannes Lehmann is a German-born soil biogeochemist at Cornell University known for research on soil organic matter and biochar, elected to the National Academy of Sciences in 2023.
Johannes Leusden
Johannes Leusden (1624–1699) was a Dutch Calvinist theologian and Hebraist, professor of Hebrew and Oriental languages at Utrecht from 1650 until his death, who edited the first Hebrew Bible with numbered verses.
Johannes Liebmann
Johannes Wilhel Liebmann (b. 21 March 2007, Eckernförde) is a German swimmer, SC Magdeburg, holding the 1500 m freestyle world record (14:26.79, Paris 2026) and 2026 European titles over 800 m and 1500 m freestyle.
Johannes Liechtenauer
Johannes Liechtenauer (Hans Lichtenauer, Lichtnawer), 14th-century German fencing master, author of the cryptic Zettel verses founding the Kunst des Fechtens; no writings of his survive, only 1389-1612 glosses.
Johannes Linnankoski
Johannes Linnankoski, pen name of Vihtori Peltonen (1869–1913), was a Finnish author whose 1905 novel Laulu tulipunaisesta kukasta became the first Finnish bestseller; he also founded the newspaper Uusimaa.
Johannes Lochner
Johannes Lochner is a retired German bobsleigh pilot, born in 1990, who won gold in the two-man and four-man at the 2026 Olympics and retired a five-time world champion.
Johannes Ludwig
Johannes Ludwig (born 1986, Suhl, Germany) is a retired German luger, 2022 Olympic men's singles champion and three-time Olympic gold medalist, 2021/22 overall World Cup winner; retired May 2022.
Johannes Martin Bijvoet
Johannes Martin Bijvoet (1892–1980) was a Dutch crystallographer who in 1951 determined the first absolute configuration of an organic molecule by X-ray diffraction, using anomalous scattering.
Johannes Mathesius
Johannes Mathesius (1504–1565) was a German Lutheran theologian and pastor in the Bohemian mining town of St. Joachimsthal who recorded Luther's Table Talks and wrote the first Protestant biography of Luther.