One of the most influential and popular scientists of all time, Sir Isaac Newton played a prominent role in our understanding of natural phenomena. He formulated the law of universal gravitation and laws of motion. He also developed the Newtonian telescope among other devices. Apart from science, Newton was also intrigued by religion, occult, and alchemy.
Ice Cube played an important role in contributing to gangsta rap's popularity. His lyrics for N.W.A's album Straight Outta Compton redrew boundaries and shaped West Coast rap's identity. Because of his lyrics, that explain black nationalism and black struggle, Ice Cube went on to influence a host of rappers and is considered one of the greatest rappers ever.
Idris Elba is a successful actor both on the small and the big screen and is mainly known for the television series The Wire and Luther and also for films, such as Mandela: Long Walk to Freedom and Beasts of No Nation. He has also acted in blockbuster films of Marvel Comics universe like Avengers: Age of Ultron and Avengers: Infinity War.
Ian Somerhalder is a successful actor, model, and director. He is also known for his activism; he is an ardent supporter of St. Tammany Humane Society, which aims at providing shelter to animals. In 2010, he founded the Ian Somerhalder Foundation, which aims at educating people about the importance of safeguarding animals and the environment.
Israel Adesanya is a Nigerian-born New Zealand kickboxer, mixed martial artist, and former boxer. Considered one of the best strikers in MMA, Adesanya has won multiple championships and is the current UFC Middleweight Champion. In 2019, Israel Adesanya was named New Zealand Sportsman of the Year at the Halberg Awards.
Rapper, singer, songwriter, musician, and actor, Ice-T is known for his fusion music that combines elements of rock and hip hop. Beginning his career as an underground rapper in the 1980s, he went on to release many albums that were commercially and critically successful. He is also an actor and voice actor.
Considered a British cultural icon, Ian McKellen is one of the most respected and decorated actors of all time. An openly gay actor, his work as an LGBT activist has been as impressive as his illustrious acting career. At the 1991 New Year Honours, he was knighted for services to performing arts.
Hawaiian musician Israel Kamakawiwoʻole began his career as part of the Makaha Sons. He later went solo with the albums Ka 'Ano'I and Facing Future and also lent his support to the Hawaiian independence movement. His ever-increasing weight caused him chronic issues and eventually led to his death at 38.
Isaac Asimov was an American writer. Best known for his science fiction works, Asimov was regarded as one of the Big Three writers along with Arthur C. Clarke and Robert A. Heinlein. Asimov is credited with influencing most sci-fi writers since the 1950s. Nobel Prize winner Paul Krugman stated that one of Asimov's works inspired him to take up Economics.
Iker Casillas is a Spanish former footballer who won the 2010 FIFA World Cup in South Africa. Counted among the greatest goalkeepers in the history of the sport, Casillas was renowned for his spectacular saves and athleticism. He was named the IFFHS World's Best Goalkeeper on a record five occasions. Also a philanthropist, Casillas owns a charitable foundation in Spain.
Immanuel Kant was a German philosopher whose works in fields like aesthetics and metaphysics have made him an important and influential personality in Western philosophy. His views continue to influence contemporary philosophy. Kant has had a major influence on prominent philosophers like Hegel, Schelling, Reinhold, and Fichte. Kant's work on mathematics is cited by Albert Einstein as an early influence.
Ian Fleming was a British writer, naval intelligence officer, and journalist. Fleming is credited with creating one of the most popular characters of all time, James Bond. His James Bond series of novels have sold more than 100 million copies, making them one of the best-selling fictional book series in history. Jamaica’s Ian Fleming International Airport is named after him.
Ibn Battuta was a Berber-Moroccan explorer and scholar who traveled extensively, visiting most of the Old World over a period of three decades. He is one of the most traveled explorers in history. After returning home, Ibn Battuta dictated an account of his journeys, which is simply referred to as The Rihla.
Iggy Pop is an American singer-songwriter, actor, musician, and record producer. Nicknamed the Godfather of Punk, Iggy Pop was an important member of the proto-punk band Iggy and the Stooges. One of the first singers to perform stage-dive, Pop is credited with popularizing the activity. A culture icon, Iggy Pop has had a major influence on musicians of various genres.
Ichiro Suzuki is a Japanese former baseball player who played as an outfielder in top-level professional leagues, including Major League Baseball (MLB). Also a popular player at the Nippon Professional Baseball in Japan, Suzuki became the first MLB player to be inducted into the Japanese Baseball Hall of Fame.
Ioan Gruffudd is a Welsh actor known for playing important roles in popular American films, such as 102 Dalmatians, Black Hawk Down, and San Andreas. An accomplished oboist and singer during his teenage years, Ioan Gruffudd gave up music in order to focus on his career as an actor.
Isco is a Spanish football player best known for his excellent ball control and technique. Over the years, he has represented popular teams like Real Madrid and the Spain national team. He was named among the world's 30 best players during the 2017-18 season.
English civil engineer, Isambard Kingdom Brunel, is considered "one of the most ingenious and prolific figures in engineering history." Considered a major figure of the Industrial Revolution, he built docks, a series of steamships, and many important bridges and tunnels. He was placed second in a BBC public poll to determine the "100 Greatest Britons" in 2002.
Imran Khan is the former Prime Minister of Pakistan who was in office from 2018 to 2022. He is also the founder and chairman of the political party Pakistan Tehreek-e-Insaf. Before making an entry into politics, Imran Khan was an extremely popular international cricketer who led Pakistan to its first ever Cricket World Cup title in 1992. As a philanthropist, he established Pakistan’s first cancer hospital in Lahore.
Popular Croatian central midfielder Ivan Rakitić now represents FC Barcelona. Though born in Switzerland, the talented footballer has never played for the country. Known for his energy on the field, he was instrumental in taking his team to the final of the 2018 FIFA World Cup.
Ingmar Bergman was a Swedish filmmaker and screenwriter. Widely regarded as one of the most influential and accomplished filmmakers of all time, Ingmar Bergman continues to serve as an inspiration for filmmakers like Woody Allen. His work has also influenced other prominent directors like Martin Scorsese, Thomas Vinterberg, and Richard Ayoade.
Ivan Reitman is a screenwriter and film and TV producer and director. He is a co-owner of The Montecito Picture Company. He attended McMaster University, where he studied music. After being fired from his first job at a TV channel, he went on to produce stage productions. Later on, he began producing films as well.
Irving Berlin was a composer and lyricist. He made tremendous contributions to the Great American Songbook and is widely considered one of the greatest songwriters in American history. He had an extensive career spanning six decades, during which he composed an estimated 1,500 songs. He received the Lawrence Langner Tony Award and the Grammy Lifetime Achievement Award.
Ivan Perisic is a Croatian football player who plays as a midfielder for the Croatia national football team and Tottenham Hotspur. Best known for his versatility, Perisic can play as an attacking midfielder, defender, or second striker. Ivan Perišić has represented his nation at important tournaments, such as the UEFA European Football Championships and World Cups.
Iman Shumpert is an American basketball player who has played in the National Basketball Association (NBA) for popular teams like New York Knicks, Cleveland Cavaliers, Sacramento Kings, and the Houston Rockets. While representing the Cleveland Cavaliers, Iman Shumpert helped his team win NBA championship in 2016.
Four-time Grammy-winning Russian composer and pianist Igor Stravinsky is regarded as one of the greatest composers of the 20th century. He is remembered for his ballets The Firebird, Petrushka, and The Rite of Spring. He broke the traditional flow of music and incorporated his own style.
Ibn Khaldun was an Arab scholar, philosopher, social scientist, and historian. He is often credited with founding the modern disciplines of sociology, historiography, economics, and demography. He is widely regarded as one of the greatest philosophers of the medieval period.
Isaiah Washington is an American actor who achieved popularity after playing Dr. Preston Burke in the popular medical drama television series Grey's Anatomy. After learning about his African roots with the help of a genealogical DNA test, Isaiah Washington traveled to Sierra Leone where he touched the lives of many by building a school and donating supplies to a hospital.
Ian Hecox is an American internet personality. He is best known for creating sketch comedy videos on YouTube and is credited with co-creating one of the most popular YouTube channels, Smosh. Apart from being one of the most subscribed YouTube channels, Smosh is also one of the most decorated channels. In 2013, Smosh was honored at the Social Star Awards.
Best known to fans as Emperor Palpatine or Darth Sidious in the Star Wars movie series, Scottish actor Ian McDiarmid also had a successful career in British theater. His performance as Teddy in the play Faith Healer won him a Tony Award, while he earned an Olivier Award for the play Insignificance.
Ibn al-Haytham was an Arab mathematician, physicist, and astronomer of the Islamic Golden Age. He is best remembered for his contributions to the principles of optics for which he is called the father of modern optics. He was the first person to explain visual perception. A polymath, Ibn al-Haytham also wrote influential books on philosophy, medicine, and theology.
I. M. Pei was a Chinese-American architect who drew inspiration from the garden villas at Suzhou when he was young. He is credited with founding I. M. Pei & Associates, an independent design firm, in 1955. Today, the award-winning firm is known by the name, Pei Cobb Freed & Partners. Pei is known for designing structures like the Mesa Laboratory.
Almost 2 decades before germ theory was laid down, Ignaz Semmelweis became the first physician to suggest that hand-washing could prevent the spread of puerperal fever and related deaths. Ironically, after being ridiculed for his theory, he died in a mental asylum, due to an infection from a wound.