During times of political turmoil, history often gets rewritten, erased, or lost. That is what happened to the legacy of Jan Czochralski, a Polish chemist whose contributions to semiconductor manufacturing were expunged after World War II. In 1916 he invented a method for growing single crystals of semiconductors, metals, and synthetic gemstones. The process, now known as the Czochralski method, allows scientists to have more control over a semiconductor’s quality. After the war ended, Czochralski was falsely accused by the Polish government of collaborating with the Germans and betraying his country, according to an article published by the International Union of Crystallography. The allegation apparently ended his academic career as a professor at the Warsaw University of Technology and led to the erasure of his name and work from the school’s records. He died in 1953 in obscurity in his hometown of Kcynia.…