Former President Jimmy Carter, who turned 100 on Oct. 1, served as the 39th president of the United States, from 1977 to 1981, but before that, he was the 76th governor of Georgia and a member of the Georgia State Senate.
Although he’s had a lengthy career in politics, Carter has worked as a diplomat and humanitarian. He’s also authored dozens of books.
[ Photos: Jimmy Carter through the years ]
Here are some things you may not know about this former president.
Naval Academy graduate Carter graduated from the United States Naval Academy in Annapolis, Maryland, at the top of his class in 1946. He started a Navy career soon after, spending five years on submarine duty.
Father of four Carter married Rosalynn Smith, who became Rosalynn Carter, in 1946, soon after graduating from high school. They had four children: Jack Carter, born in 1947; James Carter, born in 1950; Donnel Carter, born in 1952; and Amy Carter, born in 1967.
[ Rosalynn Carter: Things to know about the former first lady ]
Rebuilt family’s peanut warehouse In his hometown of Plains, Georgia, Carter's parents, Earl and Lillian Carter, owned a peanut farm, warehouse and store. When Earl Carter died of cancer in 1953, Carter resigned from the Navy , came back home and worked to rebuild the business. Despite a drought in 1954 and a boycott against integration, Carter made the business profitable by 1959.
Devoted to humanitarianism The Carter Center opened in 1982, and its mission, in partnership with Emory University in Atlanta , is to resolve conflicts and improve human health through a commitment to human rights. Part of that work led Carter to be honored with the Nobel Peace Prize in 2002.
Cancer survivor Carter was diagnosed with stage 4 melanoma in August 2015. While teaching Sunday school at Maranatha Baptist Church in Plains, he said he had surgery on a mass on his liver and had radiation treatment on four melanoma spots in his brain.
Despite the diagnosis, Carter remained active in his humanitarian work, helping build a Habitat for Humanity house in Memphis, Tennessee.
In May 2016, Carter Center Director of Communications Deanna Congileo confirmed that Carter did not need any more treatments but would “continue scans and resume treatment if necessary.”
Carter had additional medical issues in 2019. He experienced a fall in his home in Plains, Georgia, which required stitches above his brow. After a series of such falls, Carter had successful surgery to relieve pressure on his brain caused by a subdural hematoma. Carter also recovered from an infection associated with that hospital stay.
Documentary In February 2020, a documentary about Carter, “Jimmy Carter: Rock & Roll President ,” debuted at the Tribeca Film Festival.
On racial justice In June 2020, Carter released a statement about the George Floyd case. In part it read, “Rosalynn and I are pained by the tragic racial injustices and consequent backlash across our nation in recent weeks. Our hearts are with the victims’ families and all who feel hopeless in the face of pervasive racial discrimination and outright cruelty. We all must shine a spotlight on the immorality of racial discrimination. But violence, whether spontaneous or consciously incited, is not a solution.”
Jimmy Carter through the years Jimmy(James Earl) Carter as Ensign, USN, circa World War II. (Photo by PhotoQuest/Getty Images) ( /Getty Images)
Jimmy Carter through the years (Original Caption) Atlanta, Georgia. Georgia Governor Jimmy Carter formerly announces intention to seek Dem. President candidacy here. (Bettmann/Bettmann Archive)
Jimmy Carter through the years James Earl "Jimmy" Carter, 39th President of the United States (1977-1981), Governor of Georgia (1971-1975). (Photo by: Photo12/Universal Images Group via Getty Images) (Photo 12/Universal Images Group via Getty)
Jimmy Carter through the years President Jimmy Carter. (Photo by/CQ Roll Call via Getty Images) (CQ Archive/CQ-Roll Call, Inc via Getty Imag)
Jimmy Carter through the years Louisville, Kentucky, USA - November 23, 1975: Then Governor of Georgia, Jimmy Carter stands in front of posters saying 'Let's Elect JIMMY CARTER President' and addresses the National Democratic Issues Convention. (Photo by Mariette Pathy Allen/Getty Images) (Mariette Pathy Allen/Getty Images)
Jimmy Carter through the years (Original Caption) 11/23/1976-Washington, DC- Striking a pose similar to that of George Washington in the painting behind him, President-elect Jimmy Carter speaks to reporters at the Capitol where he met with House and Senate leaders. (Bettmann/Bettmann Archive)
Jimmy Carter through the years President Carter watches television after his presidential inauguration. Washington DC, January 20, 1977. (Photo by © CORBIS/Corbis via Getty Images) (Historical/Corbis via Getty Images)
Jimmy Carter through the years (Original Caption) 3/16/1977-Clinton, MA: President Jimmy Carter as he addresses a town meeting. (Bettmann/Bettmann Archive)
Jimmy Carter through the years U.S. President Jimmy Carter at the White House during a fireside chat on the Panama Canal Treaty, Washington, D.C., USA, photograph by Marion S. Trikosko,. (Photo by: Universal History Archive/Universal Images Group via Getty Images) (Circa Images/Universal History Archive/Univer)
Jimmy Carter through the years American President Jimmy Carter lays a wreath at the foot of a tomb at the cemetery at Omaha Bearch, where American soldiers killed during the Normandy landing of June 6, 1944 are buried, during his official trip to France. (Photo by Henri Bureau/Sygma/Corbis/VCG via Getty Images) (Henri Bureau/Corbis/VCG via Getty Images)
Jimmy Carter through the years November 17, 1979: President Carter, shown waist-up, waves as he boards a helicopter on the White House lawn to fly to Camp David, Maryland, where he will spend the Thanksgiving holiday. He canceled a holiday in Georgia because of the Iranian crisis. (Bettmann/Bettmann Archive)
Jimmy Carter through the years 1979 President Jimmy Carter with his name in large letters above him appearing at a high school. (Photo by Ray Fisher/The LIFE Images Collection via Getty Images/Getty Images) (Ray Fisher/The LIFE Images Collection via G)
Jimmy Carter through the years (Original Caption) Washington: President Carter speaks of the need for new energy source as he stands onto he roof of the West Wing of the White House to dedicate a newly installed solar heating system. The $28,000 unit primarily provides hot water for the staff mess hall. (Bettmann/Bettmann Archive)
Jimmy Carter through the years (Original Caption) 3/24/1979-Elk City, Oklahoma: President Jimmy Carter addressing a town meeting. American flag is hung in background. (Bettmann/Bettmann Archive)
Jimmy Carter through the years Jimmy Carter waves before the crowd on the floor of the Democratic Convention of 1980. (Photo by © CORBIS/Corbis via Getty Images) (Historical/Corbis via Getty Images)
Jimmy Carter through the years Former U.S. President Jimmy Carter renovating an apartment building on the Lower East Side for Project Habitat for Humanity, New York, NY 1984 (Photo by Evelyn Floret/The LIFE Images Collection via Getty Images via Getty Images) (Evelyn Floret/The LIFE Images Collection via G)
Jimmy Carter through the years ATLANTA - OCTOBER 17: Former President Jimmy Carter throws out the ceremonial first pitch before Game One of the 1992 World Series between the Atlanta Braves and the Toronto Blue Jays at Fulton County Stadium on October 17, 1992 in Atlanta, Georgia. The Braves defeated the Blue Jays 3-1. (Photo by MLB via Getty Images) (MLB Photos/MLB via Getty Images)
Jimmy Carter through the years ATLANTA - January 4: Former US President Jimmy Carter photographed with a wooden Chess set, board, case and photo album he made by hand at The Carter Center on January 4,1993 in Atlanta Georgia. (Photo By Rick Diamond/Getty Images) (Rick Diamond/Getty Images)
Jimmy Carter through the years THE TONIGHT SHOW WITH JAY LENO -- Episode 717 -- Pictured: Former U.S. President Jimmy Carter on June 21, 1995 -- (Photo by: NBCU Photo Bank/NBCUniversal via Getty Images via Getty Images) (NBC/NBCU Photo Bank/NBCUniversal via)
Jimmy Carter through the years Jimmy Carter attends Habitat For Humanity Benefit Project on June 23, 1995 in Los Angeles, California. (Photo by Ron Galella, Ltd./Ron Galella Collection via Getty Images) (Ron Galella, Ltd./Ron Galella Collection via Getty)
Jimmy Carter through the years Former US president Jimmy Carter takes a rest June 2, 1997, during an early bicycle tour at the office of Dutch Prime Minister Wim Kok in The Hague. Carter and some members of his family cycled some 25 km (16 miles) from the Noordwijk congress center through the dunes to the center of The Hague. Carter is taking part in the Inter Action Council of former heads of state and governments. (Photo credit should read ED OUDENAARDEN/AFP via Getty Images) (ED OUDENAARDEN/AFP via Getty Images)
Jimmy Carter through the years ATLANTA -- SEPT 14: Former President Jimmy Carter interviewed for "The Presidents' Gatekeepers" project at the Carter Center, Atlanta, Georgia, September 14, 2011. (Photo by David Hume Kennerly/Getty Images) (David Hume Kennerly/Getty Images)
Jimmy Carter through the years ATLANTA -- SEPT 14: Former President Jimmy Carter interviewed for "The Presidents' Gatekeepers" project at the Carter Center, Atlanta, Georgia, September 14, 2011. (Photo by David Hume Kennerly/Getty Images) (David Hume Kennerly/Getty Images)
Jimmy Carter through the years Former US president Jimmy Carter speaks during a press conference about his home building work project on November 7, 2011 in Leogane, south of Port-au-Prince for victims of the last earthquake of January 12, 2010. AFP PHOTO/Thony BELIZAIRE (Photo credit should read THONY BELIZAIRE/AFP via Getty Images) (THONY BELIZAIRE/AFP via Getty Images)
Jimmy Carter through the years Former President Jimmy Carter teaches Sunday school on Easter Sunday at Maranatha Baptist Church on April 20, 2014 in Plains, Georgia. (Photo by Chris McKay/Getty Images) (Chris McKay/Getty Images)
Jimmy Carter through the years Former President Jimmy Carter teaches Sunday school on Easter Sunday at Maranatha Baptist Church on April 20, 2014 in Plains, Georgia. (Photo by Chris McKay/Getty Images) (Chris McKay/Getty Images)
Jimmy Carter through the years Jimmy Carter speaks onstage during the 2015 MusiCares Person of The Year honoring Bob Dylan held at Los Angeles Convention Center on February 6, 2015 in Los Angeles, California. (Photo by Michael Tran/FilmMagic) (Michael Tran/FilmMagic)
Jimmy Carter through the years Former U.S. President Jimmy Carter attends the 25th anniversary MusiCares 2015 Person Of The Year Gala honoring Bob Dylan at the Los Angeles Convention Center on February 6, 2015 in Los Angeles, California. The annual benefit raises critical funds for MusiCares' Emergency Financial Assistance and Addiction Recovery programs. For more information visit musicares.org. (Photo by Michael Kovac/WireImage) (Michael Kovac/WireImage)
Jimmy Carter through the years Former U.S. President Jimmy Carter speaks to the congregation at Maranatha Baptist Church before teaching Sunday school in his hometown of Plains, Georgia on April 28, 2019. Carter, 94, has taught Sunday school at the church on a regular basis since leaving the White House in 1981, drawing hundreds of visitors who arrive hours before the 10:00 am lesson in order to get a seat and have a photograph taken with the former President and former First Lady Rosalynn Carter. (Photo by Paul Hennessy/NurPhoto via Getty Images) (NurPhoto/NurPhoto via Getty Images)
Jimmy Carter through the years NEW YORK, NY, UNITED STATES - 2018/03/26: Former US President Jimmy Carter at a book signing for his new book "Faith: A Journey For All" at the Barnes & Noble bookstore on Fifth Avenue in midtown Manhattan in New York City. (Photo by Michael Brochstein/SOPA Images/LightRocket via Getty Images) (SOPA Images/LightRocket via Getty Images)
Jimmy Carter through the years FILE- In this Oct. 7, 2019 file photo, former President Jimmy Carter builds corbels at a Habitat for Humanity project in Nashville, Tenn. Carter fell at home, requiring 14 stitches, but he did not let his injuries keep him from participating in his 36th building project with the nonprofit Christian housing organization. Carter, the longest serving president in U.S. history, recovered from several falls this year. This was one of the top stories in Georgia in 2019. (AP Photo/Mark Humphrey) (Mark Humphrey/AP)
Jimmy Carter through the years FILE-In this Monday, Oct. 7, 2019 file photo, Former President Jimmy Carter answers questions during a news conference at a Habitat for Humanity project, in Nashville, Tenn. Carter has been hospitalized after an another fall at his home in Plains, Ga. A statement from The Carter Center says Carter suffered "a minor pelvic fracture" on Monday, Oct. 21 but remains in good spirits and looks forward to recovering at home. (AP Photo/Mark Humphrey, File) (Mark Humphrey/AP)
Jimmy Carter through the years Democratic presidential candidate and former South Bend, Ind., Mayor Pete Buttigieg, left, meets with former President Jimmy Carter, center, at the Buffalo Cafe in Plains, Ga., Sunday, March 1, 2020. (AP Photo/Matt Rourke) (Matt Rourke/AP)
Jimmy, Rosalynn Carter: 75th wedding anniversary NEW YORK - JULY 16, 1974: Jimmy Carter and wife Rosalynn Carter wave to the delegates at the 1977 Democratic National Convention after Carter was nominated to run for President. (Photo by PL Gould/Images Press/Getty Images) (Images Press/Getty Images)
Jimmy, Rosalynn Carter: 75th wedding anniversary American politician and US Presidential candidate Jimmy Carter and his wife, Rosalynn Carter, celebrate victory in the New Hampshire Democratic Primary election, New Hampshire, February 24, 1976. (Photo by Mikki Ansin/Getty Images) (Mikki Ansin/Getty Images)
Jimmy, Rosalynn Carter: 75th wedding anniversary FILE - In this July 10, 1976 file photo Jimmy Carter, his wife Rosalynn and daughter Amy, lower left, respond to a huge crowd that welcomed them to New York. Jimmy Carter and his wife Rosalynn celebrate their 75th anniversary this week on Thursday, July 7, 2021. (AP Photo, File) (Anonymous/AP)
Jimmy, Rosalynn Carter: 75th wedding anniversary FILE - In this Dec. 13, 1978, file photo, President Jimmy Carter and his wife Rosalynn lead their guests in dancing at the annual Congressional Christmas Ball at the White House in Washington. Jimmy Carter and his wife Rosalynn celebrate their 75th anniversary this week on Thursday, July 7, 2021. (AP Photo/Ira Schwarz, File) (Ira Schwarz/AP)
Jimmy, Rosalynn Carter: 75th wedding anniversary ATLANTA - December 12: Former President Jimmy Carter with Former First Lady Rosalynn join Willie Nelson and perform at The Omni Coliseum in Atlanta Georgia. December 12, 1982 (Photo By Rick Diamond/Getty Images) (Rick Diamond/Getty Images)
Jimmy, Rosalynn Carter: 75th wedding anniversary Married couple, former President Jimmy Carter and former First Lady Rosalynn Carter pose for photographers during a book signing event, San Francisco, California, 1987. Several members of the Secret Service can be seen behind them. The couple were promoting their book, 'Everything to Gain: Making the Most of the Rest of Your Life'. (Photo by Bromberger Hoover Photo/Getty Images) (Bromberger Hoover Photography/Getty Images)
Jimmy, Rosalynn Carter: 75th wedding anniversary Atlanta - Circa October 1994; Former First Lady Rosalynn Carter and Jimmy Carter attend Former President Jimmy Carter surprise 70th. birthday party at The Carter Presidential Center in Atlanta Georgia October, 1994 (Photo By Rick Diamond/Getty Images) (Rick Diamond)
Jimmy, Rosalynn Carter: 75th wedding anniversary FILE - In this Aug. 6, 2001, file photo former U.S. President Jimmy Carter, left, and his wife Rosalynn help build a house for the Jimmy Carter Work Project 2001, at Asan near Chonan city, south of Seoul, South Korea. Jimmy Carter and his wife Rosalynn celebrate their 75th anniversary this week on Thursday, July 7, 2021. (AP Photo/Yun Jai-hyoung, File) (YUN JAI-HYOUNG/AP)
Jimmy, Rosalynn Carter: 75th wedding anniversary Rosalynn Carter and Former President Jimmy Carter during Habitat for Humanity - 2005 Jimmy Carter Work Project - Day 2 at Benton Harbor in Benton Harbor, Michigan, United States. ***Exclusive*** (Photo by R. Diamond/WireImage) (R. Diamond/WireImage)
Jimmy, Rosalynn Carter: 75th wedding anniversary FILE - In this Sept. 28, 2009, file photo former President Jimmy Carter and his wife Rosalynn look at a new interactive exhibit at the Jimmy Carter Library and Museum in Atlanta. Jimmy Carter and his wife Rosalynn celebrate their 75th anniversary this week on Thursday, July 7, 2021. (AP Photo/John Bazemore, File) (John Bazemore/AP)
Jimmy, Rosalynn Carter: 75th wedding anniversary Jimmy Carter, Democratic presidential candidate, and his wife, Rosalynn, share a moment aboard his campaign plane (Bettmann/Bettmann Archive)
Jimmy, Rosalynn Carter: 75th wedding anniversary LOS ANGELES, CA - FEBRUARY 06: Jimmy Carter and Rosalynn Carter arrive at the 2015 MusiCares Person of The Year honoring Bob Dylan held at Los Angeles Convention Center on February 6, 2015 in Los Angeles, California. (Photo by Michael Tran/FilmMagic) (Michael Tran/FilmMagic)
Jimmy, Rosalynn Carter: 75th wedding anniversary WASHINGTON DC - JANUARY 1977; President Jimmy Carter with wife Rosalyn Carter, takes the oath of office from Chief Justice of the Supreme Court Warren Burger on stage in front of the White House in January 1977; (Photo by Nik Wheeler/Corbis via Getty Images) (nik wheeler/Corbis via Getty Images)
Jimmy, Rosalynn Carter: 75th wedding anniversary American politician and US Presidential candidate Jimmy Carter and his wife, Rosalynn Carter, talk on the telephone after his victory in the Pennsylvania Primary election, Philadelphia, Pennsylvania, April 27, 1976. (Photo by Mikki Ansin/Getty Images) (Mikki Ansin/Getty Images)
Jimmy, Rosalynn Carter: 75th wedding anniversary Outgoing US President Jimmy Carter (left) and First Lady Rosalynn Carter (second left) receive President-Elect Ronald Reagan and (future First Lady) Nancy Reagan at the White House, Washington DC, November 20, 1980. Reagan had just defeated Carted in the 1980 Presidential Election. (Photo by Diana Walker/Getty Images) (Diana Walker/Getty Images)
Jimmy, Rosalynn Carter: 75th wedding anniversary American (future First Lady) Rosalynn Carter and her husband, politician (and future US President) Jimmy Carter on the day after 1976 Democratic National Convention, New York, New York, July 16, 1976. (Photo by Brownie Harris/Corbis via Getty Images) (BROWNIE HARRIS/Getty Images)
Jimmy, Rosalynn Carter: 75th wedding anniversary ATLANTA - February 14: Jimmy Carter and Rosalynn Carter attend Former Governor of Georgia Jimmy Carter's fundraiser for his 1976 Presidential run at Royal Coach Inn Atlanta Georgia February 14, 1976 (Photo By Rick Diamond/Getty Images) (Rick Diamond/Getty Images)
Jimmy, Rosalynn Carter: 75th wedding anniversary American politician and US Presidential candidate Jimmy Carter (center, right) and his wife, Rosalynn Carter, smile after his victory in the Pennsylvania Primary election, Philadelphia, Pennsylvania, April 27, 1976. (Photo by Mikki Ansin/Getty Images) (Mikki Ansin/Getty Images)
Jimmy, Rosalynn Carter: 75th wedding anniversary Washington, D.C.: Amy Carter with her father Jimmy and mother Rosalynn Carter in a family suite at the Americana Hotel in Washington, D.C. on July 14, 1976. (Photo by Dick Yarwood/Newsday RM via Getty Images) (Newsday LLC/Newsday RM via Getty Images)
Jimmy, Rosalynn Carter: 75th wedding anniversary Former President Jimmy Carter and Rosalynn Carter during Habitat for Humanity - 2005 Jimmy Carter Work Project - Day 5 at Janette St. & Tecumseh St. West in Windsor, Canada. (Photo by R. Diamond/WireImage) (R. Diamond/WireImage)
Jimmy, Rosalynn Carter: 75th wedding anniversary Jimmy Carter with his wife, Rosalynn, after a talk with the press in the woods near his home in Plains, Georgia (Owen Franken/Corbis via Getty Images)
Jimmy, Rosalynn Carter: 75th wedding anniversary NEWARK, NJ - 1996: MANDATORY CREDIT Bill Tompkins/Getty Images Former President Jimmy Carter and former First Lady Rosalyn Carter working with Habitat for Humanity restoring homes May 1996 in Newark. (Photo by Bill Tompkins/Getty Images) (Bill Tompkins/Getty Images)
Jimmy, Rosalynn Carter: 75th wedding anniversary In this April 30, 2021, photo released by The White House, former President Jimmy Carter and former first lady Rosalynn Carter pose for a photo with President Joe Biden and first lady Jill Biden at the home of the Carter's in Plains Ga. (Adam Schultz, The White House via AP) (Adam Schultz/AP)