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For 310 weeks (the second-most ever), including a record 237 weeks in a row, Roger Federer was rated as the world No. 1 in men's singles by the Association of Tennis Professionals (ATP).
By isolating radium and studying its nature and compounds, she was able to discover the elements polonium and radium, which earned her the 1911 Nobel Prize in Chemistry.
Albert Einstein's services to theoretical physics, and especially for his discovery of the law of the photoelectric effect earned him the 1921 Nobel Prize in Physics.
She became well-known for her ability to make intricate calculations by hand and for being a pioneer in the use of computers to carry out activities that previously required human labor.
Former Prime Minister Shahid Khaqan Abbasi claims that she has become Pakistan's "most prominent citizen" and that her activism has expanded into an international movement.
Swedish activist Greta Tintin Eleonora Ernman Thunberg is most renowned for her efforts to get governments to address social issues and climate change.
He turned the issue of ocean plastic waste into a high school assignment that looked at why cleanup was thought to be so difficult.
He served as the first Black African to hold the office as Bishop of Johannesburg from 1985 to 1986 and as Archbishop of Cape Town from 1986 to 1996.
Mother Teresa won a number of awards, including the Nobel Peace Prize in 1979 and the Ramon Magsaysay Peace Prize in 1962. Books, documentaries, and movies have all been influenced by her life and work.
As a prominent representative of the Gelug tradition, which dominated Central Tibet, the Dalai Lama's religious authority transcended sectarian lines, embodying Buddhist traditions and principles independent of any particular school.
From 1991 until 2012, he was the chairman of Tata Group and Tata Sons. From October 2016 to February 2017, he was the interim chairman.
"Every company needs technology, but we're graduating fewer women technologists," she said in September 2016, announcing her goal to boost workplace diversity, particularly in the technology sector. Society would not benefit from such. We must alter it.
Buffett's success has made him one of America's most well-known investors. Buffett was the tenth richest person in the world as of January 2026, with an estimated net worth of US$148.9 billion, according to Forbes.
By promoting racial harmony, a national peace treaty, and ultimately multiracial democracy, his administration aimed to eradicate the legacy of apartheid. He was the head of the African National Congress (ANC) party from 1991 to 1997 and was a socialist and African nationalist by ideology.
By using peaceful resistance and civil disobedience against Jim Crow laws and other types of legalized discrimination, which primarily targeted African Americans, he expanded civil rights for people of color in the United States.
His "wide cultural perspective and poetic overtones fashioning the drama of existence" earned him the 1986 Nobel Prize in Literature.
Marley became a global presence in popular culture and raised awareness of Jamaican music. He gained notoriety as a Rastafarian icon and added a spiritual quality to his music.
Political activist who established the Green Belt Movement, a non-governmental group dedicated to women's rights, environmental preservation, and tree planting.
Dion is the best-selling Canadian recording artist, the best-selling French-language musician, and one of the best-selling musical artists of all time, with more than 200 million records sold worldwide.
In Atlanta, Georgia, she started the intimate clothing brand Spanx, which sells pants and leggings. Blakely was included in Time magazine's "Time 100" list of the world's 100 most powerful individuals in 2012. Forbes ranked her as the 93rd most powerful woman in the world in 2014.
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