1940 – He was born Ramón Gerardo Antonio Estévez on the 3rd day of August of this year in Dayton, Ohio, USA. Sheen adopted his stage name in honor of Catholic archbishop and theologian Fulton J. Sheen. Sheen lived on Brown Street in the South Park neighborhood, and was one of 10 siblings (9 boys and one girl). He attended Chaminade High School (now Chaminade-Julienne High School).
1961 – Sheen married art student Janet Templeton on December 23 of this year, and they have four children, three sons and a daughter, all of whom are actors: Emilio Estévez, Ramón Luis Estévez, Charlie Sheen and Renée Estévez.
1963 – He made an appearance in Nightmare, an episode from the TV science fiction series The Outer Limits. The following year he starred in the Broadway play The Subject Was Roses, which he recreated in the 1968 film of the same name.
1965 – This year, he supported the farm worker movement with Cesar Chavez in Delano, California.
1972 – Sheen was a co-star in the controversial, Emmy-winning 1972 television movie That Certain Summer said to be the first television movie to portray homosexuality in a sympathetic, non-judgemental light.
1973 – His next important feature film role was in this year, when he starred with Sissy Spacek in the crime drama Badlands – which he has said in many interviews is his best film.
1974 – He portrayed a hot rod driver in the TV movie The California Kid, and that same year received an Emmy Award nomination for Best Actor in a television drama for his portrayal of Pvt. Eddie Slovik in the made-for-television film, The Execution of Private Slovik.
1979 – It was Sheen’s performance in this film that ultimately led to Francis Ford Coppola choosing him for a starring role in Apocalypse Now, which gained him wide recognition. On the set of Apocalypse Now, Sheen admitted that he was not in the greatest shape and was drinking heavily. On location, Sheen had a heart attack and crawled out to a road for help.
1989 – He was named Honorary Mayor of Malibu, CA. He promptly marked his appointment with a decree proclaiming the area "a nuclear-free zone, a sanctuary for [illegal] aliens and the homeless, and a protected environment for all life, wild and tame."
1994 – He won Emmy Award’s Best Performance of an Actor in a TV Series Drama in his performance in “Murphy Brown”.
1995 – Martin Sheen and Paul Watson from Sea Shepherd were attacked in a hotel on Magdalen Islands by a number of Canadian sealers, who were upset that they had come there to protest against the annual seal hunt and promote non-lethal alternatives.
2001 – He won Golden Globe’s Best Actor trophy for his award winning performance as President Josiah Bartlet on the acclaimed television drama “The West Wing”.
2004 – In this year, along with fellow actor Rob Reiner, Sheen campaigned for Democratic presidential candidate Howard Dean. He later campaigned for John Kerry.
2006 – The New York Times reported that members of the Democratic Party in Ohio had contacted Sheen, attempting to persuade him to run for the U.S. Senate in Ohio. Sheen declined the offer, stating that he is not qualified.
2007 – Sheen was one of many political celebrities spoofed in Team America: World Police. On April 1 of this year, he was arrested, with 38 other activists, for tresspassing at the Nevada Test Site at a Nevada Desert Experience event protesting the Nevada Test Site.