sentences:  The Frenchman Ducorp, who worked as a railway engineer near Sofia between 1873 and 1876, opened a small brewery in Knyazhevo.The Czech Jiří Prošek, who first came to Bulgaria in 1873 to work on the same railway line, noted that the local Shopi had the custom to brew primitive beer at harvest time.They soaked barley, leaving it to germinate, drying it, adding hot water and wild hops, with natural fermentation and cooling.