She married Donald Trump, a real estate mogul and television celebrity, in 2005 and gave birth to their son Barron in 2006. She became a naturalised citizen of the United States later that year. She is the second naturalised woman, after Lousia Adams, to become first lady, as well as the first non-native English speaker.

American basketball player Kobe Bean Bryan became the youngest player to record 25,000 career points on January 21, 2010, when he was 31 years and 151 days old. He played shooting guard in the National Basketball Association for the Los Angeles Lakers for the entirety of his 20-year career (NBA).

On January 22, MIT alumni Timothy "TJ" Creamer SM '92 became the first astronaut to use a new Internet connection to tweet live from orbit. 

"Hello there, Twitterverse! We are currently tweeting LIVE from the International Space Station—the first live tweet from space! :) Send yours as soon as possible "Creamer's Twitter remark said it all. 

The message was made possible through the Crew Support Local Area Network, a novel technology that allows astronauts aboard the International Space Station (ISS) to connect to the Internet via existing communication channels.

Sarat Chandra, the second son and fourth child of Janakinath and Prabhabati Bose, was born in Cuttack, Odisha in 1889. He completed his secondary school in Kolkata after completing his primary education in Cuttack and matriculation at the age of 12. He received his MA from Calcutta University in 1909 and became a lawyer in 1911. Despite the fact that his father, Janakinath, was a distinguished legal practitioner, Sarat Chandra was the first in the family to travel to England and qualify for the Bar (1912-1914). Sarat Chandra rose to prominence as a lawyer with remarkable advocacy skills and piercing cross-examination under the tutelage of the famous Nripendra Nath Sircar.

Christian Dior, born 21 January 1905, was a French fashion designer best known as the creator of Christian Dior SE, one of the world's top fashion companies now owned by parent firm LVMH. His fashion companies are well-known around the world, notably "on five continents in less than a decade" (Sauer).

Paul Gardner Allen, an American business mogul, computer programmer, researcher, investor, and philanthropist, was born on January 21, 1953. In 1975, he and his childhood friend Bill Gates co-founded Microsoft Corporation, which contributed to the microcomputer revolution of the 1970s and 1980s. Microsoft rose to become the leading provider of personal computer software.

She was discovered dead on January 22, 2005, after her residential society secretary reported to the police that she had not received food or newspapers from her porch for three days. The authorities feared she had been deceased for up to 72 hours before her corpse was discovered. The reason of her death remained unknown at the time. She was discovered to have gangrene of the left foot, a result of her diabetes. A wheelchair was discovered beside her bed, along with a jumbled collection of artwork, clothing, prescriptions, and old newspapers.

Hepburn died in her sleep at home on the evening of January 20, 1993. Following her death, Gregory Peck taped a tribute to Hepburn in which he performed Rabindranath Tagore's poem "Unending Love." On January 24, 1993, funeral services were performed in the local church in Tolochenaz. Maurice Eindiguer, the same clergyman who married Hepburn and Mel Ferrer and baptised her son Sean in 1960, officiated at her funeral, while UNICEF's Prince Sadruddin Aga Khan offered a eulogy.

The American television drama series Breaking Bad ran on AMC from January 20, 2008, to September 29, 2013. 62 episodes long and spread throughout five seasons. The series, which is set and shot in Albuquerque, New Mexico, centres on Walter White (Bryan Cranston), a dejected high school chemistry teacher who is underpaid, overqualified, and suffering from stage-three lung cancer.