Jakub Kryštof Rad was a Swiss-born physician and industrial manager who became one of Czechland's most famous inventors. He was born Jakob Christof Rad in 1799 and he died in 1871 in Vienna.
In the 1840s he was the director of a sugar refinery in Dačice. In 1843 he invented the sugar cube and took out a patent for it. 
Dačice is in Moravia and only 109 km (68 miles) from Brno. At some point I need to plan a visit, if for no other reason than, to see the sugar cube monument there. 
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