🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTürkçeРусский中文日本語EntityQ90297· pop 14· linked from 15 articlesJakob ChristmannGerman astronomer and orientalistPerson · Open LibraryBorn1554Died1613Works5Top worksObservationvm solarivm libri tresTheoria lvnae ex novis hypothesibvs et observationibvs demonstrataTractatio geometrica de quadratura circuli in decem capita distributa. Adversus errores tam veterum, quam recentiorum mechanicorumTractatio geometrica de quadratura circuli in decem capita distributaAlphabetum Arabicum cum Isagoge scribendi legendique Arabicèvia Open Library + WikidataKey datesBorn1 November 1554Died16 June 1613via Wikidata · CC0Wikidata factsInstance ofhumanGiven nameJakobConnectionsArabicEntityGeorg Joachim RheticusEntityCategories1554 births1613 deaths16th-century German astronomers16th-century German Jews16th-century German writersAcademic staff of Heidelberg UniversityAcademic staff of the Collegium Sapientiae (Heidelberg)Christian HebraistsConverts to Protestantism from JudaismGerman male non-fiction writersGerman orientalistsHeidelberg University alumni