Robert Dewar
Computer Scientist and Academic Work
Contributed significantly to programming languages and systems, primarily through work on the Ada programming language. Co-founded AdaCore, which specializes in software development solutions. Focused on providing tools and support for Ada, enhancing its use in critical systems. Worked on various academic and industrial projects aimed at improving software reliability and safety.
Co-founded AdaCore
Contributed to the development of the Ada programming language
Advanced software reliability and safety initiatives
Other People Born on June 21st
O.C. Smith
R&B and jazz singer with hits like 'Little Green Apples'
Born
June 21st, 1932 93 years ago
Died
2001 24 years ago — 69 years old
An American R&B and jazz singer, significant achievements occurred during the 1960s and 1970s. Gained recognition with the release of the hit single 'Little Green Apples' in 1968, which reached the top of the charts. Also recorded the popular song 'The Cover of the Rolling Stone.' Conducted live performances across various venues, showcasing a smooth vocal style and engaging stage presence. In addition to a successful recording career, united the genres of R&B and jazz effectively, attracting a wide audience.
Continue ReadingPontus Hultén
Art collector and historian
Born
June 21st, 1924 101 years ago
Died
October 26th, 2006 19 years ago — 82 years old
An influential figure in the art world, played a critical role in the development of several art institutions. Served as the first director of the Moderna Museet in Stockholm, which became a significant venue for contemporary art. Organized numerous important exhibitions including 'The New American Painting' and contributed to establishing the significance of Swedish art on the international stage. Worked extensively on the promotion and preservation of modern art throughout his career.
Continue ReadingDavid Kushnir
Israeli Olympic long-jumper
Born
June 21st, 1931 94 years ago
Died
2020 5 years ago — 89 years old
Competed in long jump events during the 1950s. Participated in the 1952 Helsinki Olympics, representing Israel. Achieved personal bests in various competitions throughout the career, contributing to the growth of athletics in Israel. Engaged in promoting athletics in the country post-retirement.
Continue ReadingWilliam Vickrey
Economist, Nobel Prize laureate
Born
June 21st, 1914 111 years ago
Died
1996 29 years ago — 82 years old
An economist and academic contributed to the theory of incentive systems and auction design. Vickrey's work on the theory of second-price auctions established foundational concepts in auction theory. He received the Nobel Memorial Prize in Economic Sciences in 1996 for his analysis of incentives under asymmetric information and for his contributions to auction theory. Vickrey served as a professor at Columbia University and was actively involved in various economic research initiatives throughout his career.
Continue ReadingSamuel Griffith
Politician, 9th Premier of Queensland
Born
June 21st, 1845 180 years ago
Died
August 9th, 1920 105 years ago — 75 years old
Born in Wales and later moving to Australia, served as the 9th Premier of Queensland from 1893 to 1898. Played a significant role in the drafting of the Australian Constitution, contributing to the establishment of the Commonwealth of Australia in 1901. As a member of the Queensland Legislative Assembly, pushed for various reforms including land and electoral laws. Additionally, held the position of Chief Justice of Queensland, actively influencing the judicial landscape of the state.
Continue ReadingAdrianus de Jong
Dutch fencer and Olympian
Born
June 21st, 1882 143 years ago
Died
1966 59 years ago — 84 years old
Born in the Netherlands, a prominent fencer and soldier achieved recognition during the early 20th century. Competing in the 1920 Summer Olympics in Antwerp, displayed skill in individual foil events and contributed to team competitions. Besides sporting pursuits, served in military capacities, balancing a dual career until retirement.
Continue ReadingOther People Who Died on June 30th
Dadabhai Naoroji
Indian politician and Congress president
Born
September 4th, 1825 200 years ago
Died
June 30th, 1917 108 years ago — 91 years old
An academic and politician, contributed to the foundation of the Indian National Congress. Advocated for Indian rights and economic reform under British rule. Emphasized the need for self-governance and social reforms. Played a significant role in representing Indian interests to the British government. Engaged in economic critique of colonial policies, particularly regarding taxation and economic exploitation.
Continue ReadingGeorgi Asparuhov
Bulgarian footballer and club legend
Born
May 4th, 1943 82 years ago
Died
June 30th, 1971 54 years ago — 28 years old
One of Bulgaria's most celebrated footballers, played primarily as a forward. Spent the majority of his career with CSKA Sofia, contributing to the team’s significant successes in domestic and European competitions. Gained recognition for exceptional skills and goal-scoring ability. Participated in international competitions, representing Bulgaria in the UEFA European Championship and FIFA World Cup. Tragically passed away at a young age but left a lasting legacy in Bulgarian football.
Continue ReadingErentrude
Frankish abbess and church leader
Died
June 30th, 710 1315 years ago — None years old
Served as the abbess of the convent at Nonnberg in the early 8th century. Played a significant role in promoting Christian monastic life in the Frankish territories. Contributed to the development of women's religious communities during this period. Established connections with influential figures in the ecclesiastical hierarchy.
Continue ReadingAleksander Tõnisson
Estonian general and Minister of War
Born
April 17th, 1875 150 years ago
Died
June 30th, 1941 84 years ago — 66 years old
This individual served as a general and politician in Estonia, significantly influencing the military landscape of the country. As the 5th Minister of War, handled military affairs during the crucial early years of Estonia's independence. Played a vital role in the organization and establishment of the Estonian Defense Forces during the War of Independence. Contributed to shaping Estonia's national defense policies in the post-war period, fostering military infrastructure and training programs.
Continue ReadingErnst Marcus
Zoologist known for developmental biology
Born
June 8th, 1893 132 years ago
Died
June 30th, 1968 57 years ago — 75 years old
A German zoologist contributed significantly to the field of developmental biology. Research focused primarily on the embryology of marine organisms, studying the development processes in various species. Served as a professor at the University of Tübingen and conducted extensive studies on the evolution of developmental patterns in animals. Published numerous papers that advanced understanding of embryonic development and contributed to the broader field of evolutionary biology.
Continue ReadingChico Xavier
Brazilian spiritual medium and author
Born
April 2nd, 1910 115 years ago
Died
June 30th, 2002 23 years ago — 92 years old
A prominent spiritual medium and philanthropist, this individual played a significant role in the dissemination of Spiritism in Brazil. Traditionally aligned with the teachings of Allan Kardec, extensive writings included over 400 books, many of which were attributed to spiritual beings. Engaging in charitable works, this person contributed to various social causes throughout life, focused on the well-being of the less fortunate. The impact of these contributions resonated deeply within Brazilian society.
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