Thomas Samuel Kuhn was an American historian and philosopher of science whose 1962 book The Structure of Scientific Revolutions was influential in both academic and popular circles. The book popularized the term paradigm shift, which has since become an English-language idiom.
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Also born on July 18
Entrepreneur · All Elite Wrestling · entertainment
1950 · United States
$14.3Bolder estimate, as of 2025 · Forbes
Shahid Rafiq Khan is a Pakistani and American businessman.
Keith Allison, CC BY-SA 2.0, via Wikimedia Commons
Politician
1918–2013 · South Africa
Nelson Rolihlahla Mandela was a South African anti-apartheid revolutionary, politician, and philanthropist, who served as President of South Africa from 1994 to 1999.
Kingkongphoto & www.celebrity-photos.com from Laurel, CC BY-SA 2.0, via Wikimedia Commons
Actor
1982 · India
Priyanka Chopra Jonas is an Indian actress, film producer and singer. The winner of the Miss World 2000 pageant, she is India's highest-paid actress and her accolades include two National Film Awards and five Filmfare Awards.
Bollywood Hungama, CC BY 3.0, via Wikimedia Commons
Actor
1980 · United States
Kristen Anne Bell is an American actress and singer. Her work includes both film and television, and her accolades include two Emmy Awards, in addition to nominations for three Golden Globe Awards.
Kevin Paul, CC BY 4.0, via Wikimedia Commons
Actor
1967 · United States
Mark Sinclair Vincent, known professionally as Vin Diesel, is an American actor and filmmaker. One of the world's highest-grossing actors, he gained prominence for portraying Dominic "Dom" Toretto in the Fast & Furious franchise.
Gage Skidmore from Peoria, AZ, United States of America, CC BY-SA 2.0, via Wikimedia Commons
Entrepreneur · Virgin Atlantic · telecommunications
1950 · United Kingdom
Sir Richard Charles Nicholas Branson is an English business magnate who co-founded the Virgin Group in 1970, and, as of 2016, controlled five companies.
User:David Shankbone, CC BY 3.0, via Wikimedia Commons