Sems was born in Franeker (Friesland) in 1572 to Sem IJsbrandts and Claesgen Adriaens. Sems is a patronym. Sem IJsbrandts registered himself as a student at Leiden University. The family lived on the Marendorp Landzijde on the corner of the Lange Hooglandse Kerksteeg in Leiden. IJsbrandts committed suicide in 1584 due to alcoholism. Johan Sems did not go to university himself. He had probably learned his skills in practice.
1600: The book Practijck des lantmetens, a book written by Sems and Jan Pietersz. Dou, was published. The book was used at the engineering school started by Simon Stevin.
1603: Sems made a detailed map of Leeuwarden, which was engraved by Pieter Bast.
1604-1608: Sems had the supervision over the building of the fortifications at Bourtange, Delfzijl and Bellingwolde.
Sems bought several buildings in the city center of Leeuwarden.
Around 1610, Sems moved to Bunde in Germany and he bought land in the Bunder Neuland, a polder that was created in 1604, with help from investors mainly from Amsterdam.
1615: Sems and Johan de la Haye determined the exact location of the border between Groningen and Drenthe, the Semslinie. They took the Martini tower as a reference point, but later measurements have shown that it would miss the Martini tower by 532 meters.
1618: On January 6, while he was in Denmark, Sems was asked to come to the Netherlands because of a border dispute between Groningen and Drenthe. at Ter Apel.
^Ondertrouwboek kerkelijke gemeente Groningen: Inschrijving ondertrouw van Trijntje Sems en Jochum Bastijaen Coen
^Nieuwsblad van het Noorden d.d. 13 januari 1981 Johan Sems deed als landmeter in Noord-Nederland belangrijk werk
January 06, 2023
johan, sems, 1572, january, 1635, sometimes, known, johan, semp, dutch, cartographer, engineer, land, surveyor, specialized, land, reclamation, building, dikes, fortifications, engraving, sems, made, jacob, matham, based, portrait, martin, faber, cover, practi. Johan Sems 1572 January 1635 sometimes known as Johan Semp was a Dutch cartographer engineer and land surveyor He specialized in land reclamation and the building of dikes and fortifications Engraving of Sems made by Jacob Matham based on a portrait by Martin Faber Cover of Practijck des lantmetens 1600 Map of Leeuwarden made by Sems in 1603Biography EditSems was born in Franeker Friesland in 1572 to Sem IJsbrandts and Claesgen Adriaens Sems is a patronym Sem IJsbrandts registered himself as a student at Leiden University The family lived on the Marendorp Landzijde on the corner of the Lange Hooglandse Kerksteeg in Leiden IJsbrandts committed suicide in 1584 due to alcoholism Johan Sems did not go to university himself He had probably learned his skills in practice Little is known about his children TimelineIn 1599 Sems became a silk merchant in Leeuwarden 1600 The book Practijck des lantmetens a book written by Sems and Jan Pietersz Dou was published The book was used at the engineering school started by Simon Stevin 1602 Sems was appointed land surveyor of Friesland 1603 Sems made a detailed map of Leeuwarden which was engraved by Pieter Bast 1604 1608 Sems had the supervision over the building of the fortifications at Bourtange Delfzijl and Bellingwolde Sems bought several buildings in the city center of Leeuwarden Around 1610 Sems moved to Bunde in Germany and he bought land in the Bunder Neuland a polder that was created in 1604 with help from investors mainly from Amsterdam 1615 Sems and Johan de la Haye determined the exact location of the border between Groningen and Drenthe the Semslinie They took the Martini tower as a reference point but later measurements have shown that it would miss the Martini tower by 532 meters 1616 From April 30 Sems was involved in land reclamation at Bredstedt Later that year he designed the Christianshavn on Amager 1618 On January 6 while he was in Denmark Sems was asked to come to the Netherlands because of a border dispute between Groningen and Drenthe at Ter Apel 1621 Sems was back in Bunder Neuland There were disputes between the Staten Generaal and Enno III Count of East Frisia about who had the rights in the polder ca 1623 Sems was appointed dijkgraaf in the Bunder Neuland In 1623 Jacob Matham produced an engraving of him based on a portrait by Martin Faber 1623 Sems lived in Groningen and his book De arithmetische fundamenten was published in Emden 1625 The polder at Bredstedt was swept away by the sea during a storm 1626 Sems was given the task to map the area north of Pieterburen 1628 Sems got involved with the fortifications in eastern Groningen again 1629 en clarification needed 1632 Sems s movable possessions excluding real estate were seized due to default of payment 1634 Sems was in Dutch Brazil where he was involved as an engineer in the construction of fortifications at the conquered cities 1 1635 Sems suddenly died in Groningen somewhere between 1 January and 8 February 1 In 1636 his widow married the captain Jochum Bastijaen Coen 2 Sems was married twice first to Baerthe van Soutelande and then to Catharina Jans 3 References Edit Wikimedia Commons has media related to Johan Sems a b Westra 2010 24 Ondertrouwboek kerkelijke gemeente Groningen Inschrijving ondertrouw van Trijntje Sems en Jochum Bastijaen Coen Nieuwsblad van het Noorden d d 13 januari 1981 Johan Sems deed als landmeter in Noord Nederland belangrijk werk Retrieved from https en wikipedia org w index php title Johan Sems amp oldid 1068813309, wikipedia, wiki, book, books, library,
