Mary R. Calvert
American astronomer and author
Born
June 20th, 1884
140 years ago
Died
1974
51 years ago — 90 years old
Category
Scientists & Innovators
Country
United States
Links & References
An American astronomer contributed significantly to the field of astronomy and wrote several influential works on the subject. Active in the early 20th century, engagement in scientific communities helped to advance research in stellar photography and celestial mechanics. Calvert's collaborations with peers and involvement in scientific organizations facilitated broader discussions on astronomical discoveries.
Published works on stellar photography
Contributed to research in celestial mechanics
Other People Born on June 20th
Pancho Segura
Born in 1921, an accomplished tennis player emerged from Ecuador, capturing attention with a unique playing style. Segura turned professional in 1941 and achieved considerable success on the circuit. In 1950, he won the prestigious French Championships in singles. During the 1940s and 1950s, he competed against some of the greatest players of the era. After his playing career, he transitioned into coaching, mentoring many future stars and contributing to the development of tennis.
Continue ReadingAli az-Zahir
Ascended to the throne in 1021 as the Caliph of the Fatimid Caliphate in Egypt. His reign was marked by significant military campaigns and efforts to consolidate power in the region. Initiated construction projects that included the building of mosques and public works, which contributed to the urban development of Cairo. Strengthened the Fatimid administration and promoted trade, leading to economic growth during his rule.
Continue ReadingJohn A. Costello
Served as the 3rd Taoiseach of Ireland from 1948 to 1951 and again from 1954 to 1957. Advocated for the policy of neutrality during World War II. Contributed to the development of the constitution of Ireland and played a role in promoting Irish sovereignty.
Continue ReadingGus Schilling
Active in the entertainment industry during the mid-20th century. Gained recognition for performances in film and television. Featured prominently in the comedy genre, often appearing in comedic roles alongside notable peers. Participated in several productions that contributed to the landscape of American entertainment during that era.
Continue ReadingHans Niemann
Born in 2003, a chess player achieved grandmaster status at a young age. Competed in numerous international tournaments and gained recognition for strong performances in various championships. Controversially involved in discussions regarding the ethics of competition and fair play within the chess community. Has generated significant media attention surrounding his rise in the chess world and the implications of technology in the sport.
Continue ReadingSam Bennett
A Canadian ice hockey player, made significant contributions in the National Hockey League. Played for the Calgary Flames and achieved notable success with a Stanley Cup championship. Showcased skills as a forward and was recognized for offensive production. Demonstrated versatility and contributed to team strategy in crucial games during playoff runs.
Continue Reading