Mannheim of 1848, the city was a centre for political and revolutionary activity. In 1865, Friedrich Engelhorn founded the "Badische Anilin- und Soda-Fabrik" (Baden Aniline and Soda Factory, BASF) in Mannheim, but the factory was constructed across the Rhine in Ludwigshafen because Mannheim residents feared air pollution from its operations. From this dye factory, BASF has developed into the largest chemical company in the world. After opening a workshop in Mannheim in 1871 and patenting engines from 1878, Karl Benz patented the first motor car in 1886. He was born in Mühlburg (now part of Karlsruhe). The Schütte-Lanz company, founded by
Aniline leather Aniline leather Aniline leather is a type of leather dyed exclusively with soluble dyes. The dye colours the leather without producing the uniform surface of a topcoat paint or insoluble pigmented sealant. The resulting product retains the hide's natural surface. Any visible variations on the surface of the undyed leather such as visible pores, scars, or other blemishes will remain visible. For this reason, only high quality leather is suitable for aniline finishing. Originally, the dyes used for this process were synthesized from aniline through chemical reactions. These dyes used to be called 'aniline dyes' or 'tar dyes'. In modern