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Mark Elliot Zuckerberg (born May 14, 1984) is an American computer programmer and Internet entrepreneur. He is best known as one of four co-founders of the social networking site Facebook, of which he is chairman and chief executive.

Zuckerberg was born and raised in a Jewish household in New York state. While still in middle school in his early teens, he took up writing software programs as a hobby, beginning with BASIC, with help from his father. His father then hired a tutor to help his son develop his programming skills further. Zuckerberg's enjoyment in writing programs led him to developing computer games, writing a music player, and setting up a primitive home network he called "ZuckNet." His private tutor calls him a "prodigy." In high school he excelled in classic literature and science, while becoming proficient in four other languages. He was also captain of the school's fencing team.

He later enrolled in Harvard, majoring in computer science and sociology. In his sophomore year he wrote a program called Facemash as a "fun" project, letting students on the college's network vote on other students' photo attractiveness. It was shut down within days, but would become a template for his writing Facebook, a program he launched from his dormitory room. With the help of friends, including roommate Dustin Moskovitz, Facebook went national on other campuses, and they moved to Palo Alto, California. By 2010, the site had an estimated 500 million users worldwide. Zuckerberg and Facebook have since been involved in various legal disputes initiated by others who have claimed a share of the company's profits due to their help in setting it up. Zuckerberg is the largest individual shareholder with 28.4 percent of the common stock and controls 56.9 percent of the voting power. As of 2012^[update], his personal wealth was estimated at more than $19.1 billion, making him one of the world's youngest billionaires. Zuckerberg is one of the 30 richest people on Earth.

Luciano Pavarotti, Cavaliere di Gran Croce OMRI (12 October 1935 – 6 September 2007) was an Italian operatic tenor, who also crossed over into popular music, eventually becoming one of the most commercially successful tenors of all time. He made numerous recordings of complete operas and individual arias, and established himself as one of the finest tenors of the 20th century. He was one of The Three Tenors and became well known for his televised concerts and media appearances. Pavarotti was also noted for his charity work on behalf of refugees and the Red Cross, amongst others.

Pavarotti began his professional career as a tenor in 1961 in Italy. That same year, he made his first international appearance in La traviata in Belgrade, Yugoslavia. He sang in opera houses in addition to Italy, in the Netherlands, Vienna, London, Ankara, Budapest and Barcelona. The young tenor earned valuable experience and recognition while touring Australia at the invitation of soprano Joan Sutherland in 1965. He made his United States debut in Miami soon afterwards, also on Sutherland's recommendation. His position as a leading lyric tenor was consolidated in the years between 1966 and 1972, during which time he first appeared at Milan's La Scala and other major European houses. In 1968, he debuted at New York City's Metropolitan Opera as Rodolfo in Puccini's La bohème. At the Met in 1972, in the role of Tonio in Donizetti's La fille du régiment he earned the title "King of the high Cs" when he sang the aria "Ah mes amis ... pour mon âme". He gained worldwide fame for the brilliance and beauty of his tone, especially into the upper register. He was at his best in bel canto operas, pre-Aida Verdi roles and Puccini works such as La bohème, Tosca and Madama Butterfly. The late 1970s and 1980s saw Pavarotti continue to make significant appearances in the world's foremost opera houses.

Kimberly Noel "Kim" Kardashian (born October 21, 1980) is an American socialite, celebutante, television personality, model, actress and businesswoman. She is known for starring in Keeping Up with the Kardashians, the E! reality series that she shares with her family, and its spin-offs including Kourtney and Kim Take New York.

Prior to the development of her career as a reality television star, Kardashian gained notoriety as the subject of a sex tape that subsequently resulted in a court awarding her $5 million. She has been involved in the production of several lines of clothing and fragrances. In 2010, she was the highest earning reality star, with estimated earnings of $6 million, and is one of the most highly documented and followed celebrities in the world in popular media.

In August 2011, Kardashian married basketball player Kris Humphries in a widely publicized ceremony. In October 2011, Kardashian filed for divorce, 72 days after the wedding.

Kardashian was born in Los Angeles, California, the daughter of attorney Robert Kardashian and his wife Kris Kardashian (née Houghton). Her father was a third generation Armenian American, and her mother is of Dutch and Scottish descent. Kardashian has two sisters, Kourtney and Khloé, and one brother, Robert. She has stepbrothers Burton Jenner, Brandon Jenner, and reality TV star Brody Jenner, step-sister Casey Jenner, and half-sisters Kendall Jenner and Kylie Jenner. She attended Marymount High School.