List of Famous people born on December 20th

Julia Verlyn LaMarsh, was a Canadian politician, lawyer, author and broadcaster. In 1963, she was only the second woman to ever serve as a federal Cabinet Minister. Under Prime Minister Lester Pearson's minority governments of the middle and late 1960s, she helped push through the legislation that created the Canada Pension Plan and Medicare. As Secretary of State, she was in charge of Canada's Centennial celebrations in 1967. After leaving politics in 1968, she wrote three books, and had her own radio show on CBC Radio. She was stricken with pancreatic cancer in 1979 and was given the Order of Canada at her hospital bed. She died a few days short of the 20th anniversary of her first political election victory, in 1980.

Feliks Aleksanders Zemdegs is an Australian Rubik's Cube speedsolver. He is the only speedcuber to ever win the World Cube Association World Championship twice, winning in 2013 and 2015.

Kazimierz Marcinkiewicz is a Polish conservative politician who served as Prime Minister of Poland from 31 October 2005 to 14 July 2006. He was a member of the Law and Justice party.

Jerald LaVerne Ericksen is an American mathematician specializing in continuum mechanics.

Douglas Glendenning Wright is an American playwright, librettist, and screenwriter. He received the Pulitzer Prize for Drama in 2004 for his play, I Am My Own Wife.

Sidney Hook was an American philosopher of the pragmatist school known for his contributions to the philosophy of history, the philosophy of education, political theory, and ethics. After embracing communism in his youth, Hook was later known for his criticisms of totalitarianism, both fascism and Marxism–Leninism. A pragmatic social democrat, Hook sometimes cooperated with conservatives, particularly in opposing Marxism–Leninism. After World War II, he argued that members of such groups as the Communist Party USA and Leninists like democratic centralists could ethically be barred from holding the offices of public trust because they called for the violent overthrow of democratic governments.

Jean Marchand, was a French Canadian public figure, trade unionist and politician in Quebec, Canada.

Louis Bazin was a French orientalist.

Michael Waidner is a German computer scientist. He is director of the Fraunhofer Institute for Secure Information Technology and ATHENE, the largest research institute for IT security in Europe. He is also professor of security in information technology at the department of computer science of the Technische Universität Darmstadt.