1. Headline
  1. Headline
Cold Kiss
Hulton Archive  /  Getty Images
Historians believe that the kiss was brought to Europe by Alexander the Great, who saw couples engaging in the practice in India but some cultures were slow to adopt the practice. When the Rodin sculpture "The Kiss" was exhibited in Tokyo in the 1920s, it was hidden behind a bamboo curtain.
By
updated 2/13/2012 4:18:34 PM ET 2012-02-13T21:18:34

A kiss may be just a kiss, but when sweethearts pucker up on Valentine's Day, they will be participating in one of the most bizarre and unlikely of human activities.

Experts say kissing evolved from sniffing, which people did centuries ago as a way of learning about each other.

"At some point, they slipped and ended up on the lips, and they thought that was a lot better," said Vaughn Bryant, an anthropologist at Texas A&M University and an authority on the evolution of human kissing. "You got a lot more bang for your buck."

For most of early human history, smell was more important than any other sense for human relationships, said Sheril Kirshenbaum, author of "The Science of Kissing." People would use smell to determine a person's mood, their health and their social status, she said.

  1. More from TODAY.com
    1. Jilted groom suing for $61K: ‘I tried to be a nice guy’

      Steven Silverstein, who has made headlines for suing Kendra Platt-Lee for costs related to their canceled wedding and seve...

    2. Pitbull heats up plaza with ‘Love’
    3. Michelle Parker’s mom: Her kids are ‘not the same’
    4. Bobby Brown’s kids talk about his drug use
    5. Bobbie's Buzz: Unique and clever cocktail helpers
Story: Couples face off to break 46-hour kissing record

"There were a lot of sniff greetings," said Kirshenbaum, director of the Project on Energy Communication at the University of Texas. "They would brush the nose across the face, because there are scent glands on our faces, and over time the brush of the face became a brush of the lips, and the social greeting was born that way."

Kissing as a romantic sense of expression is believed to have begun in India, where an epic poem called the Mahabharata - believed to have been written about 1000 BCE - included history's first recognizable descriptions of romantic kissing.

"She set her mouth to my mouth and made a noise that produced pleasure in me," the poem said.

Historians believe that at the time, romantic kissing was unknown in the rest of the world, and that it was brought to Europe by Alexander the Great.

In ancient Greece, kissing was a way to communicate status, rank, and loyalty among men in a military or court setting, Kirshenbaum said.

"It was a way to express a sort of a social hierarchy," she said.

Story: Bad romance? Museum collects carnage from breakups

Kissing is mentioned in Homer's Odyssey, but as a form of supplication, not romance, she said. For example, Odysseus returns home and is kissed by his slave.

'Kissing fools'
For much of human history, the location of the kiss on the body would demonstrate rank within a royal household or the army. A social equal would kiss a man directly on the mouth, and subservient soldiers, servants, and slaves would kiss the cheek, the hand, the feet, the hem of the robe, or even the ground in front of a person who was considered to be too regal to be kissed at all. This continued into the 18th century.

But by the days of Julius Caesar, the Romans were "kissing fools," Bryant said. The poet Ovid in his poem "Amores," referred to the "savium," which the Romans called the "soul kiss" and which we now refer to as the French kiss, Bryant said.

Story: Legos, Muppets and more awww-inspiring proposals

The Roman Emperor Tiberius tried to ban the kiss because he thought it was a way that people were spreading leprosy, Kirshenbaum said.

"But he was unsuccessful, because people really liked to kiss," she said.

Ban on kissing
The biggest kissing killjoys of all were the early Christians. Kissing is prominently mentioned nine times in the Bible, but only once, in Romans, does it refer to a romantic kiss. There are kisses of treachery (the Judas kiss), kisses of greeting, kisses of subjection and the kiss of life (in Genesis).

Several popes tried over the years to ban romantic kissing. In 1312, Pope Clement V decreed that "kissing done with the intent to fornicate was to be considered a mortal sin."

At that time, kissing remained unknown in much of the world. When European missionaries fanned out to Africa, Asia and Oceania in the 19th Century, they popularized kissing in places that found kissing abhorrent.

"They carried the word of kissing as well as the word of God to many of these people," Bryant said.

Story: Love is a many-splendored sting: 8 bad romance reads

In Japan, the kiss was thought to be offensive when it was introduced by Americans in the 19th century. When the Rodin sculpture "The Kiss" was exhibited in Tokyo in the 1920s, it was hidden behind a bamboo curtain, and kissing scenes were carefully deleted from Hollywood movies shown in occupied Japan after World War Two.

Kissing today takes on many meanings, according to Chicago relationship counselor Jeffrey Sumber, who has written on the social importance of kissing.

"Kissing is communication with bodies," he said. "It is the bridge between our words and our actions."

Copyright 2012 Thomson Reuters. Click for restrictions.

Photos: Most memorable kisses of all time

loading photos...
  1. Most famous kisses

    Happy Valentine’s Day! A day filled with love, flowers, hugs and kisses. Kisses are the declarations of love that make us laugh, cry and swoon. Check out some of the most famous ones from the movies, TV, fine art and the news.

    'From Here to Eternity'

    Burt Lancaster and Deborah Kerr share one of cinema's most legendary embraces in the 1953 movie. The iconic beach scene was shot at Halona Cove, Oahu, Hawaii. (Everett Collection) Back to slideshow navigation
  2. 'Gone with the Wind'

    "You need kissing badly," Clark Gable, as Rhett Butler, told Vivien Leigh's Scarlett O'Hara in this 1939 epic. "You should be kissed, and often. And by someone who knows how." While proposing to the twice-widowed Scarlett, he proves he's the man for the job. (Everett Collection) Back to slideshow navigation
  3. 'The Fraternal Kiss'

    This painting by Dmitri Vrubel is one of the best-known of the Berlin Wall graffiti paintings. Created in 1990, it depicts Soviet and East German heads of state Leonid Brezhnev and Erich Honecker in a fraternal embrace, reproducing a photograph that captured the moment in 1979 during the 30th anniversary celebration of the foundation of the German Democratic Republic. The painting was destroyed in March 2009. (Steve Eason / Getty Images) Back to slideshow navigation
  4. 'Kiss by the Hôtel de Ville'

    In 1950, French photographer Robert Doisneau created his most iconic work: "Le baiser de l'Hôtel de Ville (Kiss by the Hôtel de Ville)," a photo of a couple kissing in the busy streets of Paris. It became an internationally recognized symbol of young love in Paris. (© Robert Doisneau, courtesy of Bruce Silverstein gallery) Back to slideshow navigation
  5. 'Brokeback Mountain'

    This 2005 romantic drama film starring Heath Ledger (right) and Jake Gyllenhaal, depicts the complex romantic and sexual relationship between two men in the American West. (Everett Collection) Back to slideshow navigation
  6. Al and Tipper Gore

    Al Gore and wife Tipper kiss after his speech on opening night of the Democratic National Convention, July 26, 2004 in Boston. The energetic smooch drew widespread media attention. In 2010, the Gores announced they were separating after 40 years of marriage. (Mark Wilson / Getty Images) Back to slideshow navigation
  7. 'Ghost'

    In the 1990 supernatural romance "Ghost," the love between Demi Moore and Patrick Swayze transcends death itself. (Everett Collection) Back to slideshow navigation
  8. 'It's a Wonderful Life'

    In the 1946 classic, James Stewart plays a small-town man whose life seems so desperate he contemplates suicide. He marries his childhood sweetheart Donna Reed and is stopped from jumping off a from a bridge by his guardian angel, who shows him what life would have become had he had never lived. () Back to slideshow navigation
  9. KISS

    Gene Simmons, Tommy Thayer and Paul Stanley of KISS. You can't do a slideshow of most famous kisses without including this American rock band well known for its members' crazy costumes and face paint. (WireImage) Back to slideshow navigation
  10. 'Lady and the Tramp'

    Pampered cocker spaniel Lady falls in love with the Tramp, a mutt who lives on the streets. Their kiss happens as they share the same spaghetti noodle: a beautiful and touching moment. (Everett Collection) Back to slideshow navigation
  11. Britney Spears and Madonna

    The two singers shared an infamous smooch during the 2003 MTV Video Music Awards. Spears (left) said the kiss was Madonna's idea and that she had butterflies about it. (Frank Micelotta / Getty Images) Back to slideshow navigation
  12. 'Breakfast at Tiffany's'

    Holly Golightly (Audrey Hepburn) jumps from her taxi to smooch her love (George Peppard) in the rain at the climax of this classic 1961 film. (Everett Collection) Back to slideshow navigation
  13. 'The Princess Bride'

    Cary Elwes and Robin Wright's unrequited love finally fulfilled in the winsome 1987 film. The narration put it nicely: "Since the invention of the kiss there have been five kisses that were rated the most passionate, the most pure. This one left them all behind." (20th Century Fox) Back to slideshow navigation
  14. 'Planet of the Apes'

    Filmdom's first interspecies smooch may have been in this 1968 sci-fi classic. Chimpanzee psychologist Dr. Zira (Kim Stanley) meets injured astronaut George Taylor (Charlton Heston) and helps nurse him back to health. Before Taylor departs, they share a goodbye kiss. (Everett Collection) Back to slideshow navigation
  15. 'An Officer and a Gentleman'

    Richard Gere appears suddenly in a Navy dress uniform at Debra Winger's lunchbag factory at the finale of the 1982 hit. He kisses her, sweeps her up in his arms, and walks out to the applause and cheers of her coworkers. (Everett Collection) Back to slideshow navigation
  16. 'The Empire Strikes Back'

    Han Solo (Harrison Ford) and Princess Leia (Carrie Fisher) find the Force of mutual attraction in the second Star Wars film. (20th Century Fox) Back to slideshow navigation
  17. 'The Notebook'

    Allie (Rachel McAdams) and Noah (Ryan Gosling) kiss passionately in the rain after seven years apart. A disapproving family and a devoted fiance can't keep them away from one another in this romantic fave film from 2004. (Everett Collection) Back to slideshow navigation
  18. Rodin's 'The Kiss'

    "The Kiss" is an iconic 1889 marble sculpture by the French sculptor Auguste Rodin. It was inspired by the tale of Paolo and Francesca, lovers entwined for eternity in Dante's Inferno. http://www.vibrationdata.com/Rodin.html (Getty Images) Back to slideshow navigation
  19. Roseanne Barr and Mariel Hemingway on 'Roseanne'

    One of the first TV series to openly advocate for gay rights, "Roseanne" aired a 1994 episode entitled "Dont Ask, Don't Tell" in which Roseanne and Mariel Hemingway shared a kiss in a gay bar, one of the first lesbian kisses on TV. (ABC) Back to slideshow navigation
  20. Will and Kate

    Britain's Prince William kisses his wife Kate, Duchess of Cambridge, on the balcony of Buckingham Palace, after their wedding service on April 29, 2011. An unimpressed flower girl became an Internet meme. (Leon Neal / AFP - Getty Images) Back to slideshow navigation
  21. Kirk and Uhura on 'Star Trek'

    In her role as Lieutenant Uhura, Nichols famously kissed white actor William Shatner as Captain James T. Kirk in the November 22, 1968, Star Trek episode "Plato's Stepchildren". The episode is popularly cited as the first example of an interracial kiss on U.S. television. (Everett Collection) Back to slideshow navigation
  22. 'Sixteen Candles'

    In this 1984 classic, everyone forgets Samantha's (Molly Ringwald) 16th birthday. Fortunately, at the end of the film, she shares a romantic kiss with the guy of her dreams (Michael Schoeffling) over a cake lit with 16 candles. (Everett Collection) Back to slideshow navigation
  23. 'When Harry Met Sally'

    The New Years' Eve kiss shared by Harry (Billy Crystal) and Sally (Meg Ryan) is the highlight of this 1993 romantic comedy classic. (Everett Collection) Back to slideshow navigation
  24. 'Spider-Man'

    Peter Parker, aka Spider-Man (Tobey Maguire), is heels over head in love with Mary Jane Watson (Kirsten Dunst) in this 2002 super-hero saga, which has one of the most recognizable movie kisses ever. (Everett Collection) Back to slideshow navigation
  25. V-J Day in Times Square

    Probably one of the most recognized kisses of all time is this one between a sailor and a young nurse in Times Square, shortly after the surrender of Japan in 1945. Photographer Alfred Eisenstaedt caught the joyful moment. (Alfred Eisenstaedt / Time & Life Pictures) Back to slideshow navigation
  26. Will Ferrell and Sacha Baron Cohen

    One of the most talked-about moments of the 2007 MTV movie awards was when actors Will Ferrell (left) and Sacha Baron Cohen liplocked after accepting their award for "Best Kiss." (Kevin Winter / Getty Images) Back to slideshow navigation
  27. 'Titanic'

    Rose (Kate Winslet) and Jack (Leonardo DiCaprio) share a kiss aboard the doomed ship in the1997 hit "Titanic." Winner of eleven Oscars, it was the first film to earn more than $1 billion worldwide. (Everett Collection) Back to slideshow navigation
  28. 'Sleeping Beauty'

    Princess Aurora is doomed to die on her 16th birthday in this animated Disney classic from 1959. Thankfully, a good fairy uses her spell to have the princess fall asleep until she is awakened with a kiss. In the end, Prince Phillip removes the curse with the Kiss of Awakening, and yes, they live happily ever after. (Everett Collection) Back to slideshow navigation
  29. Chilean miner rescue

    Miner Osman Araya kisses his wife Angelica after being brought to the surface on Oct. 13, 2010 at the San Jose mine in Santiago, Chile. Araya was the the sixth miner of 33 to be rescued after a record 69 days deep underground. (Martin Bernetti / AFP - Getty Images) Back to slideshow navigation
  30. 'Twilight'

    Kristen Stewart and Robert Pattinson exchange a steamy smooch in the 2006 hit "Twilight." There is crazy chemistry between their characters: Vampire Edward longs to kiss Bella tenderly, but must overcome his unfortunate impulse to, well, drink her blood. (Summit Entertainment) Back to slideshow navigation
  31. James Bond and Pussy Galore

    In this 1964 scene from the third film in the James Bond franchise, "Goldfinger," James Bond, played by Sean Connery, has a passionate embrace with the villainous Goldfinger's personal pilot Pussy Galore, played by Honor Blackman. Is there any James Bond movie where 007 doesn't kiss the Bond girl? (Getty Images) Back to slideshow navigation
  32. 'The Godfather Part II'

    "I know it was you, Fredo -- you broke my heart." So says Michael Corleone (Al Pacino, right) to his traitorous brother (played by John Cazale) before kissing him fiercely in a key moment from the Godfather saga. (Paramount Pictures) Back to slideshow navigation
  33. 'Casablanca'

    "You must remember this: A kiss is just a kiss" goes "As Time Goes By," played throughout the 1942 drama that many consider one of Hollywood's greatest romances. Humphrey Bogart and Ingrid Bergman portray lovers torn apart by the tides of World War II (Everett Collection) Back to slideshow navigation
  34. Klimt's "The Kiss"

    "The Kiss" is probably the most famous work painted by Gustav Klimt (1862-1918). It depicts a couple, in various shades of gold and studded with symbols, sharing a kiss against a bronze background. (Getty Images) Back to slideshow navigation
  35. ‘Vancouver kissing couple’

    Riot police patrol the street as a couple kiss amid the chaos on June 15, 2011 in Vancouver, Canada. The city broke out in riots after their hockey team the Vancouver Canucks lost in Game Seven of the Stanley Cup Finals. (Rich Lam / Getty Images) Back to slideshow navigation
  1. Editor's note:
    This image contains graphic content that some viewers may find disturbing.

    Click to view the image, or use the buttons above to navigate away.

  2. Editor's note:
    This image contains graphic content that some viewers may find disturbing.

    Click to view the image, or use the buttons above to navigate away.

  3. Editor's note:
    This image contains graphic content that some viewers may find disturbing.

    Click to view the image, or use the buttons above to navigate away.

  4. Editor's note:
    This image contains graphic content that some viewers may find disturbing.

    Click to view the image, or use the buttons above to navigate away.

Discuss:

Discussion comments

,

Most active discussions

  1. votes comments
  2. votes comments
  3. votes comments
  4. votes comments

More on TODAY.com

None
  1. Tropical weather approaching Southeast

    video Subtropical storm Beryl began moving faster toward an expected landfall Sunday night on the Southeast U.S. coast, threatening Memorial Day beachgoers with forecast conditions of dangerous surf and drenching rains. NBC’s Kerry Sanders reports.

    5/27/2012 1:39:37 PM +00:00 2012-05-27T13:39:37
None
  1. TODAY

    video 80-year-old survives chute mishap

    5/27/2012 1:49:21 PM +00:00 2012-05-27T13:49:21
None
  1. Best viral video of week: Bat mitzvah dance

    video Following a rundown of the week’s best viral videos, Mike Hanley and his daughter, Jessica, chat with TODAY’s Lester Holt about the dance video taken at Jessica’s  bat mitzvah that went viral.

    5/27/2012 2:00:48 PM +00:00 2012-05-27T14:00:48
None
  1. TODAY

    video Intrigue behind arrest of Pope’s butler

    5/27/2012 1:41:40 PM +00:00 2012-05-27T13:41:40
None
  1. Summer means creepy crawlers

    video With the unofficial start of summer upon us. NBC’s Thanh Truong reports on the early arrival of insects of all shapes, sizes and varied levels of creepiness.

    5/27/2012 1:46:23 PM +00:00 2012-05-27T13:46:23
None
  1. Could Josh Powell have been stopped?

    video In a TV special airing May 29, E! investigative journalist Laura Ling unravels the tale of a deeply disturbed man who was most likely responsible for the deaths of his entire family and who very possibly could have been stopped.

    5/27/2012 1:54:03 PM +00:00 2012-05-27T13:54:03