Sir Isaac Newton, born 25 December 1642, was an English mathematician, physicist, astronomer, theologian, and author (dubbed a "natural philosopher" at the time) who is largely regarded as one of the greatest mathematicians, physicists, and most important scientists of all time. He was a pivotal player in the Enlightenment thought revolution. His 1687 work Philosophi Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy) developed classical mechanics. Newton also made important discoveries to optics and is credited with establishing infinitesimal calculus alongside German mathematician Gottfried Wilhelm Leibniz.

Jerry Seinfeld, whose sitcom character had a phobia of commitment, married Jessica Sklar, 28, on Saturday in a private ceremony attended by close friends and family. Seinfeld was dressed in a black tuxedo with a bow tie. Ms Sklar wore an ivory slip dress with spaghetti straps that was empire-waisted. On December 25, 1999, the couple married. The wedding's best man was comedian George Wallace. After the wedding, Jerry and Jessica Seinfeld paid US$32 million for Billy Joel's mansion in Amagansett, Long Island, after news of the couple's interest in the property became public in 2000.

Cassandra Jean Whitehead went on to work in television, where she had numerous minor roles, most notably on One Tree Hill, Mad Men, and Arrow. But it's in love that the former model really shines. She married Arrow actor Stephen Amell in a private wedding in the Caribbean on December 25, 2012. When the couple returned to the United States, Us Weekly stated that they married for the second time the following May in front of friends and family in New Orleans. That October, the couple had their first kid, and they've grown even more in love with each other since.

George Michael, born Georgios Kyriacos Panayiotou, was an English singer, songwriter, and record producer. He was a major pop performer in the 1980s and 1990s, winning a Grammy for best album of the year in 1987. He rose to prominence as a member of the music duet Wham!, which he created as a youngster, and had his first international success in 1984. He was discovered dead at his house in Goring-on-Thames on December 25, 2016. He was 53 at the time. Tests to ascertain the cause of his death indicated that he died of natural causes caused by heart and liver disorders.

Howard Robard Hughes Jr., born December 24, 1905, was a commercial entrepreneur, investor, record-setting aviator, engineer, film director, and philanthropist who was considered as one of the world's most influential and financially successful people during his lifetime. He rose to prominence first as a film producer, then as a key figure in the aviation sector. Later in life, he became recognised for his unusual conduct and reclusive lifestyle, which were exacerbated by his developing obsessive-compulsive disorder (OCD), chronic pain from a near-fatal plane crash, and increasing deafness.

Justin Pierre James Trudeau (born December 25, 1971) is a Canadian politician who has served as the country's 23rd and current prime minister since November 2015 and as the Liberal Party's leader since April 2013. Trudeau, the oldest son of Pierre Trudeau, is the second-youngest prime minister in Canadian history, behind Joe Clark. He is also the first to be the child or other related of a former holder of the job.

Ravish Malhotra (born December 25, 1943 in Lahore, British India) is a retired Indian Air Force Air Commodore. He was an Air Force test pilot stationed at the Bangalore test centre. He was also the Air Officer Commanding Hindon Air Force Station, which was located near Delhi.

Chakravarti Rajagopalachari was a distinguished Indian politician, freedom fighter, statesman, and lawyer. He was India's last Governor-General and the first Indian to hold the position. He created the Swatantra Party and was one of the first winners of the Bharat Ratna, the nation's highest civilian honour. A keen watcher of international affairs. Rajagopalachari was hospitalised to the Government Hospital in Madras on December 17, 1972, with dehydration, uraemia, and a urinary infection. He died on December 25, 1972, at the age of 94.

Vasco da Gama is primarily remembered for becoming the first person to sail from Europe to India by circumnavigating Africa's Cape of Good Hope. Da Gama landed and traded at locations around the coast of southern Africa over the course of two trips, commencing in 1497 and 1502, before arriving in India on May 20, 1498. Vasco da Gama promptly used his high viceregent powers to impose a new order in Portuguese India, appointing all new officials in place of the old ones. However, Gama developed malaria soon after arriving and died on Christmas Eve in 1524, three months after his arrival, in the city of Cochin.

Edison had spotted the 16-year-old putting holes in telegraph tape. On December 25, 1871, at the age of 24, Edison married Mary Stilwell, a 16-year-old employee at one of his businesses, whom he had met two months previously. Edison returned to his laboratory after the ceremony on his wedding day to work on the stock ticker. Mary Edison died on August 9, 1884, at the age of 29, of unknown circumstances, either a brain tumour or a morphine overdose.

Atal Bihari Vajpayee, born December 25, 1924, was an Indian politician who served as Prime Minister of India three times, first for 13 days in 1996, then for 13 months from 1998 to 1999, and then for a full term from 1999 to 2004. Vajpayee was a co-founder of the Bharatiya Janata Party and a key leader of the party (BJP). He was a member of the Hindu nationalist volunteer organisation Rashtriya Swayamsevak Sangh. He was the first Indian prime minister who was not a member of the Indian National Congress to fulfil a complete term. He is also well-known as a poet and writer.

Matthew Arnold, born on December 24, 1822, was an English poet and cultural critic who worked as a school inspector. He was the son of Rugby School's famed headmaster, Thomas Arnold, and the brother of literary scholar Tom Arnold and author and colonial administrator William Delafield Arnold. Matthew Arnold has been described as a wise writer, someone who chastises and advises the reader on current societal concerns. He was also a school inspector for 35 years, and he advocated the notion of state-regulated secondary education.

Anil Kapoor (born December 24, 1956) is an Indian film producer and actor who has acted in over a hundred Hindi-language films as well as international films and television programmes. His acting career spans 40 years, and he has been a producer since 2005. Throughout his career, he has received various prizes, including two National Film Awards and six Filmfare Awards.

Madan Mohan Malaviya, born 25 December 1861, was an Indian scholar, educational reformer, and politician best known for his participation in the Indian independence struggle as the three-time president of the Indian National Congress and the founder of the Akhil Bharatiya Hindu Mahasabha. He was respectfully addressed as Pandit and Mahamana.

On the set of their film Days of Thunder, Cruise met his second wife, actress Nicole Kidman. On December 24, 1990, the pair married. Isabella Jane and Connor Antony are their two adoptive children.

Charlie Chaplin, the film actor, director, and writer, was one of cinema's most creative inventors. His portrayal of "the tramp," a sympathetic comedy figure with ill-fitting clothing and a moustache, drew praise from audiences all over the world. After Queen Elizabeth II of England knighted him in 1975, he became Sir Charles Chaplin. Chaplin died in his sleep in Switzerland two years later, on December 25, 1977.

James Joseph Brown was a well-known American musician who made significant contributions to the development of several musical genres, including soul music, funk music, and rap music. This highly influential artist redefined the way music was created in America over a six-decade career. On December 25, 2006, he died of congestive heart failure caused by pneumonia complications. He was 73 years old at the time.