Henrietta Swan Leavitt
American astronomer studying Cepheid variables

Born
July 4th, 1868
157 years ago
Died
December 12th, 1921
103 years ago — 53 years old
Category
Scientists & Innovators
Country
United States
Links & References
An American astronomer and academic contributed significantly to the field of astronomy through research on variable stars, specifically Cepheid variables. Developed a method to determine distances to far-off galaxies using the relationship between a Cepheid's luminosity and its pulsation period. This work laid the foundation for later discoveries regarding the expansion of the universe. Worked at the Harvard College Observatory, where many female astronomers operated under the title of 'computers', analyzing star data and making crucial astronomical advancements during the late 19th and early 20th centuries.
Developed the period-luminosity relationship for Cepheid variables
Advanced techniques for measuring cosmic distances
Other People Born on July 4th
Amantle Montsho
Achieved significant success in sprinting, especially in the 400 meters. Competed in the Olympics, representing Botswana in both the 2008 Beijing and 2012 London Games. Won the gold medal at the 2011 World Championships in Daegu, becoming the first woman from Botswana to win a World Championship title. Contributed to her country's prominence in track and field.
Continue ReadingTommy Körberg
Born in Sweden in 1948, a prominent singer and actor emerged with a successful career in music and theatre. Gained international recognition for performing in the musical 'Chess', particularly for the song 'Anthem'. Appeared in notable Swedish television and stage productions, showcasing strong vocal talent. Also contributed to the Swedish music scene through various albums and performances, enhancing the cultural landscape.
Continue ReadingMiguel Pinto
Born in Chile, a talented goalkeeper played for clubs such as Universidad de Chile and Huachipato. Gained recognition for his performances in the Chilean Primera División and international competitions. Represented the Chilean national team in various tournaments and contributed to the team's success during his tenure.
Continue ReadingOscar I of Sweden
Ruled as King of Sweden and Norway from 1844 until death in 1859. Initiated numerous reforms focused on modernization and industrialization in both countries. Encouraged education, civil service reforms, and urban development. Presided over a period marked by increased political stability and economic growth. Collaborated with various political factions, promoting a more democratic governance structure. Had a strong interest in culture and the arts, supporting significant cultural institutions in Sweden.
Continue ReadingGina Lollobrigida
A prominent figure in Italian cinema, this actress gained international fame during the 1950s and 1960s. She starred in several films, including 'Buona Sera, Mrs. Campbell' and 'The Hunchback of Notre Dame'. In addition to acting, she pursued a successful career in photography, capturing images of various celebrities and events. Throughout her career, she received numerous awards for her contributions to film and the arts, including a Golden Globe Award. The actress later transitioned to journalism and took on various roles including that of a politician, advocating for humanitarian causes.
Continue ReadingPeter Richardson
A prominent cricketer, this individual played first-class cricket for Worcestershire from 1950 to 1967. As a right-handed batsman, contributed significantly to the team's successes during the County Championship. Served as team captain and led Worcestershire to several key victories, solidifying the club's reputation in English cricket. Also represented England in international matches, showcasing talent on a global scale. His career encompassed a range of matches and competitions, highlighting the skills and dedication to the sport.
Continue ReadingOther People Who Died on December 12th
Alan Shugart
An engineer and businessman co-founded Seagate Technology, a major company in data storage solutions. Under leadership, Seagate developed technologies significant in the hard disk drive market. Contributions included driving innovation in storage capacity and performance, establishing the company as a leader in the field. Helped in the transition from floppy disks to hard drives, playing a key role in the evolution of personal computing.
Continue ReadingAnn Reinking
An accomplished actress, dancer, and choreographer, made significant contributions to musical theater. Achieved prominence in the role of Roxie Hart in the revival of 'Chicago' on Broadway. Choreographed productions and showcased talent in multiple renowned performances. Worked with prominent figures in the theater industry, cementing a legacy of artistic collaboration and innovation.
Continue ReadingJohann Christoph Gottsched
A prominent figure in 18th-century German literature, engaged in literary criticism and drama. Played a significant role in the development of German theatrical forms and the promotion of Enlightenment ideals. Contributed to the establishment of a literary language that emphasized clarity and reason. His advocacy for the integration of French classical drama into German literature influenced the direction of theatrical writing in the region. Served as a professor and established a literary society that helped cultivate new literary talents.
Continue ReadingJohn Sparrow David Thompson
A prominent Canadian lawyer and politician, held the position of 4th Prime Minister from 1892 until 1894. Before assuming the role of Prime Minister, served as the Attorney General of Nova Scotia and as a judge on the Nova Scotia Supreme Court. Thompson was influential in the creation of the Canadian Highway Act, facilitating road construction across Canada. His leadership also involved addressing issues related to immigration and the expansion of railroads. Died unexpectedly in office.
Continue ReadingPrince Frederick Adolf of Sweden
Served as a Swedish prince and military leader during the 18th century. Played a significant role in the Swedish military campaigns of the Great Northern War. Focused on the development of military strategy and administration, contributing to the organization of the Swedish army. Actively participated in various military engagements in defense of Sweden's interests during his lifetime.
Continue ReadingJoe Allbritton
Founded Allbritton Communications Company, a prominent media company with holdings including ABC7 in Washington, D.C. Served as the chairman of the company for several decades, overseeing its expansion and operations. Acquired and managed various media properties, enhancing his influence in the broadcasting industry. Additionally, engaged in philanthropic efforts that supported the arts and education in the community.
Continue Reading