History of the hamburger hand at home using specialized chisels, intensive manual labor that severely limited the amount that could be produced. It is very likely that the invention of the meat grinder contributed directly to the popularization of Hamburg steak, while the steak gradually became distant from its German roots in the minds of many Americans. Minced meat also came to be used in other popular American foods, including hot dogs and meatloaf. Another development facilitating the invention and popularization of the proto-hamburger was the increased production of beef through livestock intensification. By the late 19th century, an increasing amount of land was
Rudolf Hamburger Stalin's purges against enemies of the regime were at their height. More than a thousand German political refugees from Nazism were among the many Muscovites identified as Trotskyites and spies: in many cases they were summarily tried and shot. Ursula Hamburger was well aware of what was going on, but she herself never fell victim to Stalin's paranoia. Rudolf Hamburger subsequently wrote that his contribution to Soviet intelligence during the time in Poland was in effect restricted to the help he was able to give his wife. He involved himself in the installation of radio antennae and getting hold of