Elizabeth Alexandra Mary Windsor, the Duke and Duchess of York's first child, was born on April 21, 1926, and was baptised in the chapel at Buckingham Palace. She was educated at home alongside her younger sister, Princess Margaret, and subsequently served as a subaltern in the Auxiliary Territorial Service during World War II, rising to the rank of Junior Commander. The coronation took place in Westminster Abbey on June 2, 1953, and was broadcast worldwide on radio and, at the young Queen's request, on television, bringing the splendour of the occasion to hundreds of millions of people in ways never previously believed possible.

Maria Yuryevna Sharapova is a world-class professional tennis player from Russia. Maria Sharapova began her professional tennis career at the age of 14, and despite suffering from various injuries during her career, she is one of the few female tennis players to gain numerous honours and maintain her status in the sport. Maria Sharapova was born on April 19, 1987, in the Russian village of Nyagan, parents Yuri and Yelena.

J. Robert Oppenheimer who lived from April 22, 1904 to  February 18, 1967 was an American theoretical physicist and University of California, Berkeley professor of physics. Oppenheimer was the wartime director of the Los Alamos Laboratory and is widely regarded as the "Father of the Atomic Bomb" for his role in the Manhattan Project, the World War II effort that produced the first nuclear weapons. Oppenheimer was present at the Trinity test in New Mexico, where the first atomic bomb was detonated successfully on July 16, 1945. He later remarked that the explosion reminded him of a line from the Bhagavad Gita: "Now I am Death, the destroyer of worlds."

Surekha Sikri (April 19, 1945 – July 16, 2021) was an Indian stage, film, and television actress. Sikri was nominated for three National Film Awards and one Filmfare Award. She made her debut in the 1977 political drama Kissa Kursi Ka and went on to play supporting roles in a number of Hindi and Malayalam films, as well as Indian soap operas. Sikri won the National Film Award for Best Supporting Actress three times, for her performances in Tamas (1988), Mammo (1995), and Badhaai Ho (1999). (2018). She won the Indian Telly Award for Best Actress in a Negative Role in 2008 for her work in the primetime soap opera Balika Vadhu and the Indian Telly Award for Best Actress in a Negative Role in 2009.

Every year on April 22, Earth Day commemorates the beginning of the contemporary environmental movement in 1970. It may be difficult to believe that prior to 1970, a business could blast black clouds of poisonous smoke into the air or dump tonnes of hazardous trash into a nearby stream and do it legally. They couldn't go to court to halt it. Senator Gaylord Nelson established Earth Day in the spring of 1970 to bring this issue onto the national agenda. Twenty million Americans demonstrated in various places around the country, and it worked! The U.S. Environmental Protection Agency was established in December 1970 after Congress approved the establishment of a new government agency to address environmental challenges.

Andy Serkis is a British actor and director best known for his voice work and appearances in CGI-animated and motion capture films. He is most recognised for his portrayal of Gollum in 'The Lord of the Rings' trilogy and 'The Hobbit: An Unexpected Journey.' Serkis has played a variety of roles that have been represented on-screen with the use of motion capture technology. Andrew Clement G. Serkis was born on April 20, 1964, to Armenian doctor Clement Serkis and British teacher Lylie. He was born in Ruislip Manor, West London, England, and has four brothers and sisters.

James McAvoy is a well-known Scottish actor who has appeared in films, television shows, and on stage. McAvoy, who was born in Glasgow, Scotland, had his film debut as a youngster in The Near Room, in which he played a tiny role. He rose to prominence after starring in Bollywood Queen, a British Indian adaptation of Romeo and Juliet in which he played the major role. James McAvoy was born in Glasgow, Scotland, on April 21, 1979. His mother, Elizabeth, was a mental nurse, and his father, James McAvoy Sr., was a builder. He has a sister, Joy, and a half-brother, Donald.

On April 21, 2019, Volodymyr Zelenskyy was elected President of Ukraine. Mr Zelensky has earned more than 73% of the vote with virtually all ballots tallied in the run-off vote, with incumbent Petro Poroshenko lagging well behind on 24 percent. Russia says it wants him to demonstrate "good judgement," "honesty," and "pragmatism" in order for ties to improve. Russia is a supporter of rebels in eastern Ukraine. Volodymyr Zelensky, a Ukrainian comedian, has won the country's presidential election by a landslide.

Anju Bobby George is a retired Indian athlete who was born on April 19, 1977. Anju Bobby George made history by winning the bronze medal in long jump at the 2003 World Athletics Championships in Paris. She became the first Indian athlete to win a medal in a World Championships in Athletics by jumping 6.70 metres. She went on to win gold at the IAAF World Athletics Final (a competition between the best eight athletes in the world based on world ranking) in 2005, which she considers her best performance. Following the disqualification of Tatyana Kotova of Russia, Anju was promoted to gold from silver in the 2005 World Athletics Final in Monte Carlo.

Amber Laura Heard (born April 22, 1986) is a film and television actress from the United States. Heard had her first starring role in the 2006 horror film All the Boys Love Mandy Lane, after a series of small roles. She rose to prominence as a supporting actress in the films Never Back Down and Pineapple Express. Heard first appeared in the DC Extended Universe in 2017 as Atlantean queen Mera in the superhero films Justice League, Aquaman, and Zack Snyder's Justice League. Heard has been a global spokesperson for the cosmetics company L'Oréal Paris since 2018. She is also a human rights activist.

Abhishek Bachchan is an Indian actor who is the son of Amitabh Bachchan and Jaya Bachchan; his elder sister is Shweta Bachchan-Nanda. He is married to Aishwarya Rai, an actress and former Miss World. Abhishek began his career with the film Refugee, which was fairly popular and starring Kareena Kapoor. For around four years, he appeared in a few films that were not particularly successful. In 2004, he appeared in the film Dhoom, which became his first box office success. Soon after, in 2005, he released four consecutive blockbusters: Bunty aur Babli, Sarkar, Dus, and Bluffmaster.

Chetan Bhagat is an Indian author and columnist who was born on April 22, 1974. In 2010, he was named to Time magazine's list of the World's 100 Most Influential People. Bhagat earned a mechanical engineering degree from IIT Delhi and a PGP from IIM Ahmedabad. He began his career as an investment banker but left after a few years to pursue his passion for writing. He has ten novels and three non-fiction books to his credit. Five Point Someone, his first novel, was released in 2004.

Robbie Amell is a Canadian television and film actor best known for his roles as Stephen Jameson on The CW's 'The Tomorrow People' and Wesley Rush in the film 'The Duff.' Robbie, who entered the world of fame and glamour at the age of six, began his career as a model and actor in modest advertising and TV shows before breaking through in the national television and film industries. Robert Patrick "Robbie" Amell was born in Toronto, Canada, on April 21, 1988, to parents Jo and Rob Amell. He has a sister with whom he began doing small-time commercials and modelling jobs.

Arshad Warsi (born April 19, 1968) is an Indian film actor, producer, dancer, television personality, choreographer, and playback singer. He has received several awards, including a Filmfare Award from five nominations, and is known for his work in a variety of film genres. Warsi has also hosted the dance show Razzmatazz in 2001, Sabse Favourite Kaun in 2004, and the first season of the reality television show Bigg Boss, for which he received the Indian Television Academy Award for Best Anchor – Game/Quiz Show. In 2003, he co-starred with Karisma Kapoor in the TV series Karishma – The Miracles of Destiny, and in 2010, he was a judge on Zara Nachke Dikha. Warsi has a beautiful wife Maria Goretti.

Shakuntala Devi was an Indian writer and mathematician known colloquially as the "human computer." She was said to be able to perform complex mathematical calculations in her brain and then effortlessly shout out the answers! As the daughter of a circus artist, she was born into a poor household in southern India and began performing at a young age. Her father identified her as a young prodigy and took her to road shows where she demonstrated her mathematical abilities. She died on April 21, 2013, after a long period of suffering from respiratory, cardiac, and renal ailments.

To avoid interference, the US government opted to connect the computers at NORAD's headquarters at Cheyenne Mountain using fibre optics. About 1.5 miles underneath downtown Chicago, the first optical telephone communication system was established. Each optical cable was capable of carrying 672 voice channels.

Adolf Hitler was born in Braunau am Inn, Austria, on April 20, 1889. He is most known for being the head of the Nazi Party and for starting the Second World War. In July 1921, Adolf Hitler succeeded Anton Drexler as party chairman of the Nazi Party, and he was shortly given the title führer ("leader"). He was Germany's chancellor from January 30, 1933, and Führer and chancellor together from August 2, 1934. His ascension to power precipitated the Second World War and the Holocaust, which killed over six million Jews.

James Franco is an actor, director, screenwriter, producer, teacher, and author from the United States. He acquired a strong desire to study and enrolled in a variety of colleges, focusing mostly on creative writing. His mainstay, though, remained acting. He made his television debut in the NBC sitcom "Freaks and Geeks," which became a cult favourite. "Never Been Kissed" was his first film. His performance as Harry Osborn in "Spider-Man" launched him to popularity. James Edward Franco was born in Palo Alto, California, on April 19, 1978, to Betsy Lou Verne, a writer and actor from an immigrant Russian Jewish family, and Douglas Eugene Franco, a Silicon Valley businessman of Portuguese and Swedish origin.

Carmen Electra, the blonde bombshell who shot to popularity after appearing in Playboy magazine with her provocative photos, was born Tara Leigh Patrick. She'd always known she was cut out for greatness, what with her unique skin tone, crystal blue eyes, and wonderful body. Her parents were also involved in the entertainment industry, so it's no wonder that she opted to follow in their footsteps. Her professional career began as a dancer and vocalist before transitioning to television. Carmen was born in Ohio to Patricia and Harry. Her mother was a vocalist, and her father was a musician who also performed as an entertainment. Her unusual appearance is due to her blended parentage.

John Joseph Nicholson, born April 22, 1937, is a retired American actor and filmmaker with a career spanning more than 50 years. He is well-known for playing a variety of starring and supporting roles, including comic characters, romantic leads, anti-heroes, and villains. He played the "eternal outsider, the sardonic drifter" in many of his films, someone who rebels against the social structure. He has received numerous honours, including three Academy Awards.

The First Battle of Panipat was fought between Babur's soldiers and Ibrahim Lodhi's forces. The battle took place on April 21, 1526. The employment of artillery by Babur's army aided their success in the conflict. Lodi forces were lacking in artillery expertise, and the sound of canons spooked the Lodi war elephants. From 1517 until 1527, the Sultanate was ruled by Ibrahim Lodi, a superb warrior but an undiplomatic monarch. The First Battle of Panipat ended in Ibrahim Lodi's death, as well as the end of the Lodi Dynasty and the Delhi Sultanate in India. In addition, with the collapse of the Sultanate, Mughal rule in India started.