Abū al-Wafā' Būzjānī
Persian mathematician and astronomer

Born
None
None years ago
Died
July 15th, 998
1027 years ago — None years old
Category
Scientists & Innovators
Country
Iran
Links & References
A Persian mathematician and astronomer contributed significantly to the fields of mathematics and astronomy during the medieval period. Developed advancements in trigonometry, particularly in terms of sine and tangent functions. Implemented the use of sexagesimal fractions, which improved accuracy in calculations. Created accurate astronomical tables and synthesized earlier scientific knowledge, particularly the works of Greek astronomers. His efforts in improving the accuracy of astronomical instruments facilitated advancements in celestial navigation.
Authored the book 'Kitab al-Esti'a'adah'
Developed trigonometric functions using sexagesimal fractions
Created astronomical tables for celestial calculations
Other People Who Died on July 15th
Celeste Holm
An accomplished actress and singer, renowned for roles in classic films and Broadway productions. Gained prominence in the 1940s, receiving an Academy Award for Best Supporting Actress for performance in 'Gentleman's Agreement'. Contributed to many stage performances, notably in 'Oklahoma!' and 'The King and I'. Appeared in television series such as 'Promised Land' and 'The Time of Your Life'.
Continue ReadingMeskerem Legesse
Competed in long-distance running events, specializing in the 5000 meters and cross country. Achieved significant success during the 2002 African Championships, securing a gold medal in the 5000 meters. Participated in the 2004 Olympic Games in Athens, representing Ethiopia in the women's 5000 meters event. Contributed to the growth of women's athletics in Ethiopia through competitive performances and appearances in international competitions.
Continue ReadingFriedrich Wilhelm Schnitzler
Engaged in politics and land management in Germany. Served in various governmental roles and contributed to regional development and agricultural policies. Known for dedication to improving local governance and land stewardship.
Continue ReadingRobert Wadlow
Born in 1918, he was an American man recognized as the tallest person in recorded history. His extraordinary height of 8 feet 11 inches was due to an overactive pituitary gland, which resulted in excessive growth hormone production. Wadlow's height led to several health challenges throughout his life. He was a gentle and amiable individual, gaining attention not only for his stature but also for his character. He graduated from Alton High School and attended Shurtleff College. Wadlow's public appearances included participation in promotional events and community engagements, where he inspired curiosity in many. His life came to a premature end in 1940 at the age of 22 due to an infection caused by braces on his legs.
Continue ReadingEdward Perl
Accomplished American neuroscientist and academic, contributed significantly to the understanding of pain mechanisms and neural pathways. Investigated the nature of pain through both experimental and theoretical approaches. Held academic positions and published extensively, influencing the field of neuroscience. His work provided insights into the sensory system and pathological conditions related to pain. Collaborated with numerous researchers and mentored many students throughout an extensive career.
Continue ReadingRosalía de Castro
Born in Galicia, the poet contributed significantly to the Galician and Spanish literary traditions. Her works expressed the struggles and aspirations of the Galician people and highlighted themes of identity, love, and nature. 'Follas Novas' is one of the most recognized collections of poetry, reflecting her deep connection to Galicia and its culture. She wrote both in Galician and Spanish, demonstrating a commitment to promoting the Galician language and heritage.
Continue Reading