Las Medulas - Roman Gold Mines In Spain

Roman military commander Pliny the Elder, who was born in Lombardy, was leading mining in Spain (Hispania at the time).

Who was Rudolph Lipschitz?

Who was the mysterious Rudolph Lipschitz, from whom the famous Lipschitz Continuity gets its name? He was a German mathematician born in 1832 in Konigsberg (now Kaliningrad in Russia, the administrative centre of the Kaliningrad oblast). He studied with Gustave Dirichlet of number theory fame (also credited with introducing the modern notion of a function) at the University of Berlin. He passed away in 1903 in Bonn.