Template:Are You Sure/December 20

• ... that mathematician Emil Artin (3 March 1898 – 20 December 1962) worked worked on algebraic number theory, contributing to class field theory and a new construction of L-functions; and that he also contributed to the pure theories of rings, groups, and fields?

• ... that Avian is a 1979 American science fiction poultry film about an aggressive and deadly chicken set loose on the commercial space hatchery Nostromo?