Henrietta Swan Leavitt
American astronomer studying Cepheid variables
Born
July 4th, 1868
156 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
Renny Vega
This athlete played as a goalkeeper in professional football, primarily in the Venezuelan league and international competitions. Notably, he represented Venezuela in various Copa América tournaments. Vega had a significant career in club football, playing for teams such as Caracas FC and Deportivo La Guaira. His performances contributed to his teams' successes in national and international matches.
Continue ReadingElizabeth Peratrovich
A civil rights activist advocated for the rights of Alaska Natives. Instrumental in the passage of the Alaska Discriminatory Practices Act of 1945, which prohibited discrimination based on race and ethnicity in Alaska. Played a crucial role in raising awareness of the struggles faced by Native Alaskans and pushed for equal treatment in housing, employment, and public accommodations. Worked with organizations to elevate the status of Indigenous peoples and fought against racism and discrimination in local communities.
Continue ReadingJames Anthony Bailey
Co-founded Ringling Bros. and Barnum & Bailey Circus, which became one of the most famous circuses in the United States. Established the circus as a major entertainment entity in the late 19th and early 20th centuries. Played a key role in organizing and promoting large-scale circus performances and events, contributing to the circus's growth and national prominence.
Continue ReadingGeraldo Rivera
A lawyer, journalist, and author, this individual has worked extensively in television news and as an investigative reporter. The career began in the 1970s, initially focusing on civil rights issues. This journalist gained national attention for the televised exposé on the Willowbrook State School, which highlighted the conditions in state-run institutions for the disabled. Over the years, this individual hosted various programs, including the talk show 'Geraldo,' which aired from 1987 to 1998. Later, involvement with Fox News occurred, where contributions as a correspondent and commentator continued.
Continue ReadingÁlvaro Uribe
Served as the 39th President of Colombia from 2002 to 2010, implementing security policies that aimed to reduce violence and increase investment. Prior to the presidency, held positions as the governor of Antioquia and a senator. His administration faced challenges related to human rights issues and paramilitary groups, but also pursued significant economic growth and improvements in national security. After leaving office, continued to influence Colombian politics and maintained a prominent role in national and international discussions.
Continue ReadingColin Welland
An English actor and screenwriter received acclaim for writing the screenplay of the film 'Chariots of Fire', which won an Academy Award for Best Original Screenplay. As an actor, appeared in the television series 'Z-Cars' and the film 'Kes'. Welland's career included notable work on stage and in television, contributing to various productions throughout the 20th century. Later work involved involvement in television drama and adaptation projects, maintaining a presence in the British entertainment industry until retirement.
Continue ReadingOther People Who Died on December 12th
Danny Aiello
An American actor, Aiello gained recognition for roles in several films and television shows. He starred in 'Do the Right Thing' directed by Spike Lee, where he portrayed Salvatore. Other notable appearances include 'Moonstruck' and 'Jacob's Ladder'. Aiello also appeared in numerous television series throughout his career. His work spanned over four decades, and he was appreciated for his character-driven performances. Aiello received an Academy Award nomination for Best Supporting Actor for his role in 'Do the Right Thing'. His contributions to film and television established him as a respected figure in the entertainment industry.
Continue ReadingRaymond Radiguet
An influential French author and poet. Best recognized for the novel 'The Devil in the Flesh', which explores themes of love and desire during World War I. Radiguet's writings often reflected the complexities of youth and the impact of war on society. His literary career, although brief, garnered significant attention for its emotional depth and stylistic innovation. Radiguet's work is noted for its exploration of personal and societal conflicts amid the backdrop of historical events.
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 ReadingMildred Bailey
Born in 1907, a significant figure in American jazz, achieved acclaim during the 1930s and 1940s. Collaborated with prominent musicians and bands, including the Paul Whiteman Orchestra. Best recognized for a unique voice that blended pop and jazz styles, influencing future generations. Recorded classic songs such as 'Cry Baby' and 'I Can't Give You Anything But Love.' Her contributions helped shape the sound of big band and jazz during a pivotal era in music history.
Continue ReadingAbdul Quader Molla
Served as a key figure in the politics of Bangladesh, holding the position of assistant secretary general of the Bangladesh Jamaat-e-Islami party. Engaged in journalism, contributing to various publications. Was involved in the 1971 Bangladesh Liberation War, with involvement in the contentious trials related to war crimes. His political activities drew both support and significant opposition, leading to a controversial legacy in Bangladeshi politics.
Continue ReadingDouglas Fairbanks
An American actor, director, producer, and screenwriter significantly influenced the early film industry. Starred in silent films and became a major box office draw during the 1910s and 1920s. Co-founded United Artists, which allowed creators to maintain control over their work. Pioneered the swashbuckler genre, capturing audiences with iconic roles in films such as 'The Mark of Zorro' and 'The Three Musketeers'.
Continue Reading