Bastille Day Commemorates the French Revolution

Bastille Day commemorates when an angry Parisian mob stormed the Bastille and later captured by authorities on July 14, 1789, Continue reading

Synthetic Indigo Dye

German chemist, Adolf von Baeyer developed synthetic indigo dye in 1880, at the University of Munich. Continue reading

Probation system for criminals

This was the first such system in the world. Boston, MA, USA, in 1878, legally established a probation system for criminals as a judicial policy. Continue reading

Wilhelm Maybach

Wilhelm Maybach (help·info) (German pronunciation: [ˈvɪlhɛlm ˈmaɪbax]; 9 February 1846 – 29 December 1929) was an early German engine designer and industrialist. Continue reading

Motorcycle with an internal combustion engine

The German engineers Gottlieb Wilhelm Daimler and Wilhelm Maybach invented the internal combustion engine for Motorcycles. Continue reading

The Electric elevator

At the 1880 Mannheim Industrial Exhibition at Mannheim, Germany, Siemens and Halske Company installed an electric elevator, which transported passengers to the top of an observation tower. Continue reading