On July 28, which happens to be Dr. Baruch Blumberg's (1925–2011) birthday, the world observes World Hepatitis Day (WHD). The hepatitis B virus was identified by Dr. Blumberg in 1967, and the first hepatitis B vaccine was created by him two years later. The culmination of these accomplishments was Dr. Blumberg's 1976 Nobel Prize in Physiology or Medicine. WHD is observed each year to raise awareness of viral hepatitis, which affects more than 354 million people worldwide according to the World Health Organization (WHO) and CDC.

An Indian actor who primarily performs in Hindi films is Sanjay Balraj Dutt (born 29 July 1959). He has won several honours, including three Screen Awards and two Filmfare Awards. Dutt has appeared in 187 films, spanning the romance and comedy genres, but he is frequently typecast in action films. He has become one of the most well-known actors in Hindi films from the late 1980s to the 2010s.

When the first total solar eclipse photograph was captured on July 28, 1851, that all changed. According to Space.com, the image was taken by Prussian daguerreotypist Johann Julius Friedrich Berkowski during a total solar eclipse in Königsberg, which is now Kaliningrad, Russia.

Italian politician and journalist Benito Mussolini (29 July 1883 – 28 April 1945) established and oversaw the National Fascist Party. From the March on Rome in 1922 until his removal as prime minister in 1943, he served as both the "Duce" of Italian fascism from the founding of the Italian Fasces of Combat in 1919 until his execution by Italian partisans in 1945.

Paul Michael Levesque (born July 27, 1969), better known by his ring name Triple H, is an American business executive, actor, and retired professional wrestler. He is the executive vice president of WWE's Global Talent Strategy & Development, as well as the executive producer of the NXT brand, as of 2022. He is widely regarded as one of the greatest professional wrestlers of all time.

He lived from 26 September 1820 to 29 July 1891. He made a lot of effort to modernise and streamline Bengali prose. Additionally, he rationalised and simplified the Bengali alphabet and type, which had not been changed since the first (wooden) Bengali type was cut by Charles Wilkins and Panchanan Karmakar in 1780. Known as the "Father of Bengali Prose,"

Maximilien Robespierre, a French lawyer and statesman who lived from 6 May 1758 to 28 July 1794, is regarded as one of the most well-known and significant figures of the French Revolution. He advocated for universal manhood suffrage, the abolition of both clerical celibacy and slavery while serving as a member of the Estates-General, the Constituent Assembly, and the Jacobin Club.

Fernando Alonso Dáz, a Spanish racing driver who debuted in the Formula One on July 29, 1981, is currently driving for Alpine. With Renault, he won the World Drivers' Championship for the series in 2005 and 2006. He has also raced for McLaren, Ferrari, and Minardi.

Indira Priyadarshini Gandhi, an Indian politician and a key member of the Indian National Congress, lived from 19 November 1917 to 31 October 1984. She was India's third prime minister and the country's first and only female leader to date. In 1982, Prime Minister Indira Gandhi made her first trip to the US in almost 11 years.

On November 12, 1940, Amjad Khan was born in Hyderabad, Hyderabad State, British India. Known for the films Sholay (1975), Yaarana (1981), and Maa Kasam, he was also a director (1985). Shaila Khan was his wife. On July 27, 1992, he passed away in Bombay, Maharashtra, India. In a nearly 20-year career, he appeared in over 132 movies. He was the Jayant actor's son. He became well-known for playing villains in mostly Hindi movies, most notably as Dilawar and Gabbar Singh in the classic Sholay from 1975. (1978).

Jehangir Ratanji Dadabhoy Tata (July 29, 1904 – November 29, 1993) was a non-resident Indian aviator, industrialist, entrepreneur, and the chairman of the Tata Group.

He was born into the Indian Tata family, the son of noted businessman Ratanji Dadabhoy Tata and his wife Suzanne Brière. His mother was the first woman in India to drive a car, and he became the country's first licenced pilot in 1929. He is also best known as the founder of the Tata Group, which includes Tata Consultancy Services, Tata Motors, Titan Industries, Tata Salt, Voltas, and Air India.

The 11th President of India, Avul Pakir Jainulabdeen Abdul Kalam, was an Indian aerospace scientist who lived from October 15, 1931, to July 27, 2015. He was in office from 2002 to 2007. He studied aerospace engineering and physics and was born and raised in Rameswaram, Tamil Nadu. He worked as a scientist and science administrator for the following four decades, primarily at the Indian Space Research Organization (ISRO) and the Defence Research and Development Organization (DRDO). He was heavily involved in both India's efforts to develop military missiles and its civilian space programme.

Huma Qureshi, an Indian actress and model born on July 28, 1986, is most frequently seen in Hindi-language movies. Additionally, she has been nominated for three Filmfare Awards. While working as a theatre actor and model, Qureshi earned a bachelor's degree in history with honours from the University of Delhi. She performed in a number of theatrical productions before relocating to Mumbai and signing a two-year deal to appear in television commercials for Hindustan Unilever.

Anup Jalota, an Indian singer, musician, and actor, was born on July 29, 1953. He is best known for his contributions to the Bhajan style of Indian music. He is referred to as the "Bhajan Samraat" in the public (Emperor of Bhajans). He received the Padma Shri award from the Indian government in 2012. He participated in season 12 of the reality competition Bigg Boss.

The National Aeronautics and Space Administration is an independent federal agency in the United States that is in charge of the civil space programme, aeronautics research, and space research.

NASA, which succeeded the National Advisory Committee for Aeronautics (NACA) on July 29, 1958, was established to give the US space development effort a distinctly civilian orientation, emphasising peaceful applications in space science. NASA has led the majority of American space exploration efforts since its inception, including the Apollo Moon landing missions, the Skylab space station, and, later, the Space Shuttle.