attack on the Taniyama–Shimura conjecture and Fermat's Last Theorem. In the mid-1980s Langlands turned his attention to physics, particularly the problems of percolation and conformal invariance. In 1995, Langlands started a collaboration with Bill Casselman at the University of British Columbia with the aim of posting nearly all of his writings—including publications, preprints, as well as selected correspondence—on the Internet. The correspondence includes a copy of the original letter to Weil that introduced the -group. In recent years he has turned his attention back to automorphic forms, working in particular on a theme he calls "beyond endoscopy". Awards and honors Langlands has received the 1996 Wolf Prize (which he shared with Andrew Wiles), the 2005 AMS Steele Prize, the 1980 Jeffery–Williams Prize, the 1988 NAS Award in Mathematics from the National Academy of Sciences, the 2006 Nemmers Prize in Mathematics, the 2007 Shaw Prize in Mathematical Sciences (with Richard Taylor) for his work on automorphic forms. In 2018, Langlands was awarded the Abel Prize for "his visionary program connecting representation theory to number theory". He was elected a Fellow of the Royal Society of Canada in 1972 and a Fellow of the Royal Society in 1981. In 2012, he became a fellow of the American Mathematical Society. Langlands was elected as a member of the American Academy of Arts and Sciences in 1990. He was elected as a member of the National Academy of Sciences in 1993 and a member of the American Philosophical Society 2004. Among other honorary degrees, in 2003, Langlands received a doctorate honoris causa from Université Laval. In 2019, Langlands was appointed a Companion of the Order of Canada. On January 10, 2020, Langlands was honoured at Semiahmoo Secondary, which installed a mural to celebrate his contributions to mathematics. Personal life Langlands has been married to Charlotte Lorraine Cheverie (b 1935) since 1957. They have four children (2 daughters and 2 sons). He holds Canadian and American citizenships. Langlands spent a year in Turkey in 1967–68, where his office at the Middle East Technical University was next to that of Cahit Arf. In addition to his mathematical studies, Langlands likes to learn foreign languages, both for better understanding of foreign publications on his topic and just as a hobby. He speaks English, French, Turkish and German, and reads (but does not speak) Russian. Publications See also Automorphic L-function Endoscopic group Geometric Langlands correspondence Jacquet–Langlands correspondence Langlands