Eugen de Ha%C3%ABn
Eugen de Han was a German chemist and founder of the chemistry factory E. de Han. After studying in Heidelberg under the supervision of Kirchhoff and Bunsen, de Han worked in several chemical factories. In 1861 he founded the E. de Han company in Linden and later in List, two small villages close to Hanover. The railway and the possibility to have access to the Mittellandkanal he changed the location of his company to Seelze east of Hanover in 1902. After significant expansion the company J. D Riedel bought the company in 1926 and changed the name of the combined companies to Riedelde Han. The company changed owners several times in his long history, but chemicals are still produced in Seelze.
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Source: Wikipedia