Germinal Pierre Dandelin
Mathematician; Dandelin Spheres in Geometry
Born
Died
Category
Thinkers & Philosophers
Country
Belgium
Links & References
Contributed significantly to mathematics and engineering, particularly in the field of geometry. Developed the Dandelin spheres, which provide a geometrical proof of the relationship between conic sections and ellipses. Engaged in research involving the properties of geometric figures and their applications in engineering. Published works that influenced the understanding of conic sections and their properties.
Developed Dandelin spheres for conic sections
Published research in geometry and engineering
Other People Born on April 12th
Maharana Sangram Singh
Rana of Mewar, 16th-century ruler
Born
April 12th, 1484 542 years ago
Died
1527 499 years ago — 43 years old
Ascended the throne of Mewar in the early 16th century, presiding over a significant period marked by resistance against Mughal expansion. Initiated several military campaigns to reclaim and secure the territories of Mewar. Strengthened the fortifications of key locations, including Chittorgarh. Established alliances with other Rajput kings for mutual defense. Renowned for his valor and strategic acumen, he became a symbol of Rajput pride, often seen in historical narratives as a defender of Rajputana's sovereignty.
Continue ReadingMartin Brasier
English palaeontologist and biologist
Born
April 12th, 1947 79 years ago
Died
December 16th, 2014 11 years ago — 67 years old
An English palaeontologist and biologist, contributed significantly to the understanding of early life forms and the fossil record. Played a crucial role in studying microbialites and their implications for the origin of life. Served in various academic positions, fostering research in palaeobiology. Published numerous influential papers that advanced the field and collaborated on interdisciplinary projects linking geology with biology.
Continue ReadingFelix de Weldon
Sculptor of the Marine Corps War Memorial
Born
April 12th, 1907 119 years ago
Died
June 3rd, 2003 23 years ago — 96 years old
An Austrian-American sculptor, created the Marine Corps War Memorial, which commemorates the Marines who fought in World War II during the Battle of Iwo Jima. Received multiple awards for work in sculpture and design. Contributed to various memorial projects across the United States, expressing themes of patriotism and sacrifice. His sculptures are displayed in significant locations, showcasing artistry and historical recognition.
Continue ReadingJohn Kay
Singer-songwriter and guitarist
Born
April 12th, 1944 82 years ago
Died
1780 246 years ago — -164 years old
Born in Germany, a musician settled in Canada, made a significant mark in rock music. Formed the band Steppenwolf, which achieved fame in the late 1960s and 1970s. Contributed to the rise of the counterculture movement with anthems that resonated with the era. Played a pivotal role in creating the hit song 'Born to be Wild', which is often associated with motorcycle culture and the film 'Easy Rider'. Besides performing, engaged in various production roles and solo projects over the years.
Continue ReadingDally Messenger
Rugby player and cricketer
Born
April 12th, 1883 143 years ago
Died
November 24th, 1959 66 years ago — 76 years old
Played rugby union and rugby league, achieving recognition as a pivotal figure in Australian rugby. Excelled as a cricketer and demonstrated versatility by competing in sailing. Represented New South Wales and played for the South Sydney Rabbitohs. Considered a trailblazer for the sport in Australia and contributed to the popularization of rugby.
Continue ReadingGeorge Robertson
Scottish politician, former NATO Secretary General
Born
April 12th, 1946 80 years ago
Born in 1946, a prominent Scottish politician and diplomat. Served as the 10th Secretary General of NATO from 1999 to 2003, overseeing key operations during a significant period in the Alliance's history. Earlier in a political career, served as a Member of Parliament for Hamilton South from 1978 to 2001 and held various positions including Secretary of State for Defence from 1997 to 1999. Contributed to the development of defense policy and international relations during a pivotal time.
Continue ReadingOther People Who Died on February 15th
Jens Evensen
Norwegian lawyer and Minister of Trade
Born
1917 109 years ago
Died
February 15th, 2004 22 years ago — 87 years old
A prominent Norwegian lawyer and politician, served as Minister of Trade from 1971 to 1972. Played a significant role in development of the Law of the Sea, contributing to the negotiation of the United Nations Convention on the Law of the Sea. Worked as a judge in the Supreme Court of Norway. Contributed to international maritime law and the protection of Norway's fishing rights.
Continue ReadingP.J. O'Rourke
Humorist and journalist, wrote 'Parliament of Whores'
Born
1947 79 years ago
Died
February 15th, 2022 4 years ago — 75 years old
A prominent American author and humorist, contributed significantly to political commentary through satire. Wrote extensively for publications such as National Lampoon and The Weekly Standard. Authored books exploring political and social issues with a humorous lens, with 'Parliament of Whores' highlighting the absurdities of American politics. Worked as a foreign correspondent, offering insights into international affairs with a comedic twist. O'Rourke's style and perspective garnered a dedicated readership, making him a significant voice in contemporary humor.
Continue ReadingStuart McLean
Canadian radio broadcaster and storyteller
Born
1948 78 years ago
Died
February 15th, 2017 9 years ago — 69 years old
A Canadian radio broadcaster and storyteller, contributed significantly to public radio through a long-running program featuring storytelling and music. Hosted 'The Vinyl Cafe' which aired for over two decades, showcasing humorous and heartfelt tales that resonated with audiences. The show became an integral part of Canadian culture, often featuring both fictional characters and real-life guests. McLean's work extended beyond broadcasting, including published books that compiled stories from the program, further establishing his voice in contemporary Canadian literature.
Continue ReadingPat Sullivan
Animator and producer of Felix the Cat
Born
February 22nd, 1887 139 years ago
Died
February 15th, 1933 93 years ago — 45 years old
An Australian-American animator and producer, contributed significantly to early animation. Created the character Felix the Cat, one of the first cartoon stars. Established a successful studio in the 1920s focusing on animated shorts. Pioneered techniques that influenced the animation industry during the silent film era.
Continue ReadingJohnny Weaver
Wrestler and sportscaster
Born
1935 91 years ago
Died
February 15th, 2008 18 years ago — 73 years old
Wrestling career began in the late 1950s, competing in various promotions including the NWA. Gained recognition for championship reigns in the Mid-Atlantic region. Transitioned to sports broadcasting after retiring from in-ring competition, providing commentary and analysis for wrestling events. Contributed to wrestling media through various platforms until death in 2008.
Continue ReadingTiberios III
Byzantine Emperor during the 7th century
Died
February 15th, 706 1320 years ago — None years old
Reigned as Byzantine Emperor from 698 to 705. Ascended to the throne amid political strife and military challenges. Faced significant conflicts with the Umayyad Caliphate and internal revolts. His reign included attempts to strengthen the Byzantine military and governance but was marked by instability and eventual overthrow.
Continue Reading