Walter Kohn was an Austrian-American theoretical physicist and theoretical chemist. He was awarded, with John Pople, the Nobel Prize in Chemistry in 1998. The award recognized their contributions to the understandings of the electronic properties of materials. In particular, Kohn played the leading role in the development of density functional theory, which made it possible to calculate quantum mechanical electronic structure by equations involving the electronic density. This computational simplification led to more accurate calculations on complex systems as well as many new insights, and it has become an essential tool for materials science, condensed-phase physics, and the chemical physics of atoms and molecules.

The Kindertransport was an organised rescue effort of children from Nazi-controlled territory that took place in 1938–1939 during the nine months prior to the outbreak of the Second World War. The United Kingdom took in nearly 10,000 children, most of them Jewish, from Germany, Austria, Czechoslovakia, Poland, and the Free City of Danzig. The children were placed in British foster homes, hostels, schools, and farms. Often they were the only members of their families who survived the Holocaust that was to come. The programme was supported, publicised, and encouraged by the British government, which waived the visa immigration requirements that were not within the ability of the British Jewish community to fulfil. The British government placed no numerical limit on the programme; it was the start of the Second World War that brought it to an end, by which time about 10,000 kindertransport children had been brought to the country.