December 21

Hermann Joseph Muller (or H. J. Muller) (December 21, 1890 – April 5, 1967) was an American geneticist, educator, and Nobel laureate best known for his work on the physiological and genetic effects of radiation (X-ray mutagenesis) as well as his outspoken political beliefs. Muller frequently warned of the long-term dangers of radioactive fallout from nuclear war and nuclear testing, helping to raise public awareness in this area.

His lab grew quickly, but it shrank again following the onset of the Great Depression. Especially after the stock market crash, Muller was increasingly pessimistic about the prospects of capitalism. Some of his visiting lab members were from the USSR, and he helped edit and distribute an illegal leftist student newspaper, The Spark. It was a difficult period for Muller both scientifically and personally: his marriage was falling apart, and he was increasingly dissatisfied with his life in Texas. Meanwhile, the waning of the eugenics movement, ironically hastened by his own work pointing to the previously ignored connections between environment and genetics, meant that his ideas on the future of human evolution had reduced impact in the public sphere.

Phillip John "Phil" Donahue (born December 21, 1935) is an American media personality, writer, and film producer best known as the creator and host of The Phil Donahue Show. The television program, also known as Donahue, was the first talk show format that included audience participation. The show had a 29-year run on national television in America that began in Dayton, Ohio, and ended in New York City in 1996.

His shows have often focused on issues that divide liberals and conservatives in the United States, such as abortion, consumer protection, civil rights and war issues. His most frequent guest was Ralph Nader, for whom Donahue campaigned in2000. Donahue also briefly hosted a talk show on MSNBC from July 2002 to March 2003 when he was fired by the TV network for opposing George W. Bush's invasion of Iraq.

In 1996, Donahue was ranked #42 on TV Guide's 50 Greatest TV Stars of All Time.

Oprah Winfrey said "if it weren't for Phil Donahue, there never would have been an Oprah Show!" 

Jane Fonda (born Lady Jayne Seymour Fonda; December 21, 1937) is an American actress, writer, political activist, former fashion model, and fitness guru. She rose to fame in the 1960s with films such as Barbarella and Cat Ballou. She has won two Academy Awards, an Emmy Award and received several other movie awards and nominations during more than 50 years as an actress. After 15 years of retirement, she returned to film in 2005 with Monster-in-Law, followed by Georgia Rule two years later. She also produced and starred in over 20 exercise videos released between 1982 and 1995, and once again in 2010.

Fonda has been an activist for many political causes; her opposition to the Vietnam War and associated activities were controversial. She has also protested the Iraq War and violence against women. She describes herself as a liberal and afeminist. In 2005, Fonda worked alongside Robin Morgan and Gloria Steinem to co-found the Women's Media Center, an organization that works to amplify the voices of women in the media through advocacy, media and leadership training, and the creation of original content. Fonda currently serves on the board of the organization. Since 2001, Fonda has been a Christian. She published an autobiography in 2005, and in 2011, she published a second memoir, Prime Time.

Samuel Leroy Jackson (born December 21, 1948) is an American film and television actor and film producer. After becoming involved with the Civil Rights Movement, he moved on to acting in theater at Morehouse College, and then films. He had several small roles such as in the film Goodfellas before meeting his mentor, Morgan Freeman, and the director Spike Lee. After gaining critical acclaim for his role in Jungle Fever in 1991, he appeared in films such as Patriot Games, Amos & Andrew, True Romance and Jurassic Park. In 1994, he was cast as Jules Winnfield in Pulp Fiction, and his performance received several award nominations and critical acclaim.

Jackson has since appeared in over 100 films including Die Hard with a Vengeance, The 51st State, Jackie Brown, Unbreakable, The Incredibles, Black Snake Moan, Shaft, Snakes on a Plane, Django Unchained, as well as the Star Warsprequel trilogy and small roles in Quentin Tarantino's Kill Bill Vol. 2 and Inglourious Basterds.

He played Nick Fury in Iron Man, Iron Man 2, Thor, Captain America: The First Avenger, and Marvel's The Avengers, the first four (not including Iron Man) of a nine-film commitment as the character for the Marvel Cinematic Universe franchise. Jackson's many roles have made him one of the highest-grossing actors at the box office. Jackson has won multiple awards throughout his career and has been portrayed in various forms of media including films, television series, and songs. In 1980, Jackson married LaTanya Richardson, with whom he has a daughter, Zoe.

In October 2011, Jackson surpassed Frank Welker as the highest grossing film actor of all-time.