The United States National Museum was founded in 1846 as part of the Smithsonian Institution. The museum was initially housed in the Smithsonian Institution Building, which is better known today as the Smithsonian Castle. A formal exhibit hall opened in 1858.
On February 19, 1943, Hans and Sophie took a great risk by placing copies of a sixth leaflet produced by the White Rose Group in the deserted halls of the University of Munich. After a janitor spotted them, they were arrested by the Gestapo. Sophie, her brother Hans and Christoph Probst were soon tried and executed.
White Castle traces the origin of the hamburger to Hamburg, Germany with its invention by Otto Kuase. However, it gained national recognition at the 1904 St. Louis World's Fair when the New York Tribune referred to the hamburger as the innovation of a food vendor on the pike.