Johann Sebastian Bach lived in Koethen from 1717 to 1723. He worked for Prince Leopold of Anhalt-Koethen and composed well-known music. But where did he live? This question has been open for 130+ years. The EU, the state of Anhalt-Saxony, Koethen County, and the City of Koethen sponsored a project to find out. Georg Heeg eK won the bidding and started the digging. After almost two years using VisualWorks, COM-Connect, GemStone/S and Seaside all known data (both text and tax figures) could be viewed in a semantic network. Bibliometry was used to evaluate statements of historians. Finally a process of elimination showed: Bach lived in Schalaunische Str. 44 until he moved to Wallstr. 25/26 in 1719. He always had the same landlord Johann Andreas Lautsch. In early phase existing software packages were evaluated, before agile software development process inside the agile research project was started to get insight in the history of Koethen.
Georg Heeg learned about Smalltalk in 1983 at Dortmund University. In 1987 he founded the now oldest 100% Smalltalk enterprise located in Dortmund, Koethen and Zurich. His organization supports Smalltalk customers world-wide. He is co-founder of ESUG and since 2007 he is Executive Director of STIC Smalltalk Industry Council.
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