of the American Mathematical Society. Felix Browder was renowned in the field of nonlinear functional analysis—a branch of mathematics with wide applications to such fields as physics, engineering, and finance. He was instrumental in establishing a science and technology center in conjunction with Princeton University and Bell Labs. In 1999, he was awarded the National Medal of Science by President Bill Clinton, for his "key role in the explosive growth of nonlinear functional analysis and its applications to partial differential equations in recent years". Bill Browder has one sibling, Tom Browder, who entered the University of Chicago at 15, and became a leading particle physicist. Bill Browder's son Joshua is the founder of DoNotPay, a startup that helps to automate certain legal services. Career and citizenship Browder started his career in the Eastern European practice of the Boston Consulting Group in London, then worked for Robert Maxwell's MCC conglomerate, and after that managed the Russian proprietary investments desk at Salomon Brothers. In 1999, Browder received naturalization as a British citizen. Meanwhile, he relinquished his U.S. citizenship in 1998. He cited that he did so because of "a legacy of bad feeling about the rule of law" as a result of his family having been "viciously persecuted" by U.S. authorities in the 1950s, citing especially his communist grandfather, Earl Browder who was imprisoned twice during the era of McCarthyism. Hermitage Capital Management Browder and Edmond Safra (1932–1999) founded Hermitage Capital Management in 1996 for the purpose of investing initial seed capital of $25 million in Russia during the period of the mass privatization after the fall of the Soviet Union. Beny Steinmetz was another of the original investors in Hermitage. Following the Russian financial crisis of 1998, Browder remained committed to Hermitage's original mission of investing in Russia, despite significant outflows from the fund. Hermitage became a prominent activist shareholder in the Russian gas giant Gazprom, the large oil company Surgutneftegas, RAO UES, Sberbank, Sidanco, Avisma, and Volzhanka. Browder exposed management corruption and corporate malfeasance in these partly state-owned companies. He has been quoted as saying: "You had to become a shareholder activist if you didn't want everything stolen from you". In 1999, Avisma filed a RICO lawsuit against Browder and other Avisma investors including Kenneth Dart, alleging they illegally siphoned company assets into offshore accounts and then transferred the funds to U.S. accounts at Barclays. Browder and his co-defendants settled