Georges Lemaître
Astronomer and creator of the Big Bang theory
A Belgian priest and scientist contributed foundational concepts to modern cosmology. Lemaître proposed the hypothesis of the expanding universe, which later became known as the Big Bang theory. In 1927, published a groundbreaking paper outlining the relation between the distance of galaxies and the redshift observed in their light. This work laid the groundwork for much of contemporary cosmological thought. Prior to this, contributed to the field of mathematics and physics, developing significant theories that influenced various areas of science. Lemaître's religious background provided a unique perspective on the intersection of science and faith.
Proposed the Big Bang theory
Published work on the expanding universe
Other People Born on July 17th
Ismail I of Iran
Shah of Persia and founder of Safavid dynasty
Born
July 17th, 1487 539 years ago
Died
1524 502 years ago — 37 years old
Birth occurred in 1487. Ascended to power at the age of 14, establishing the Safavid dynasty in Persia. Implemented Shia Islam as the state religion, thus shaping the religious landscape of Iran. Conquered vast territories and solidified Persian identity through cultural and religious reforms. Defeated rival forces, including the Uzbeks and Ottomans, which expanded the Safavid realm. Engaged in significant battles to secure territorial claims while fostering trade and arts.
Continue ReadingChristian Karl Reinhard of Leiningen-Dachsburg-Falkenburg-Heidesheim
Noble statesman and military commander
Born
July 17th, 1695 331 years ago
Died
1766 260 years ago — 71 years old
Born in 1695, a member of the House of Leiningen-Dachsburg, held positions of significance within the Holy Roman Empire. Served as a military commander during various European conflicts in the early 18th century. Engaged in political affairs and represented his territory in diplomatic missions, impacting local governance and military strategy during turbulent times. His lineage continued to influence regional politics in Central Europe.
Continue ReadingLucie Arnaz
American actress and singer from 'Here’s Lucy'
Born
July 17th, 1951 75 years ago
Born in 1951, Lucie Arnaz gained recognition as an actress and singer. Arnaz starred in the television series 'Here's Lucy' alongside her mother, Lucille Ball. She continued to perform in various stage productions and musicals, showcasing her talents in both acting and singing. Arnaz's work extended to directing and producing, contributing to various projects throughout her career.
Continue ReadingGordon Gould
Physicist and laser inventor
Born
July 17th, 1920 106 years ago
Died
September 16th, 2005 20 years ago — 85 years old
An American physicist and academic, contributed to the field of optics and photonics. Invented the laser in the 1950s and coined the term 'laser', standing for Light Amplification by Stimulated Emission of Radiation. Although the invention faced patent disputes, secured a patent in 1977 after several legal battles. Served as a professor and held various academic positions throughout his career.
Continue ReadingLeif Hoste
Belgian professional cyclist
Born
July 17th, 1977 49 years ago
Born in 1977, a professional cyclist specialized in road racing, particularly notable for competing in the Classics. Achieved significant results in prestigious races throughout his career, representing various teams in the UCI ProTour. Known for a strong performance in one-day races and stage events, with multiple top finishes in major cycling events.
Continue ReadingJoyce Anelay
English educator and politician
Born
July 17th, 1947 79 years ago
A British educator and politician has served as a member of the House of Lords. Baroness Anelay held the position of Minister of State at the Foreign and Commonwealth Office. Contributions to educational policy and leadership in various committees within the House of Lords are significant aspects of her career. Engagement in discussions regarding educational reform and international relations highlights her professional focus.
Continue ReadingOther People Who Died on June 20th
Carl Friedrich Abel
German viol player and composer
Born
1723 303 years ago
Died
June 20th, 1787 239 years ago — 64 years old
A prominent viol player and composer contributed significantly to the development of the viola da gamba repertoire. Abel frequently performed as a soloist and chamber musician across Europe, showcasing his skills in various cities. Composed numerous sonatas and concertos for the viol, demonstrating a deep understanding of the instrument. His work helped popularize the viol in the 18th century and influenced later composers. Established a successful association with the Bach family, notably hosting performances in London.
Continue ReadingHijikata Toshizō
Japanese military commander and rebel leader
Born
May 31st, 1835 191 years ago
Died
June 20th, 1869 157 years ago — 34 years old
Born in 1835, he served as the vice commander of the Shinsengumi during the late Edo period. The Shinsengumi was a special police force formed to protect the Tokugawa shogunate. He played a crucial role in various battles during the Boshin War, which was a civil war between imperial and shogunate forces. Hijikata's leadership helped shape the resistance against the Meiji Restoration, aiming to preserve the samurai way of life. He died in 1869 at the Battle of Hakodate, marking the end of the Shinsengumi.
Continue ReadingWilliam IV of the United Kingdom
King of the United Kingdom (1830-1837)
Born
August 21st, 1765 260 years ago
Died
June 20th, 1837 189 years ago — 71 years old
Ascended to the throne as the third son of George III. His reign saw the passage of the Reform Act 1832, which reformed the electoral system and expanded voting rights. The king supported the abolition of slavery and the establishment of the Naval Discipline Act. A keen sailor, he had a strong interest in naval matters and advocated for the Royal Navy's modernization. The period also experienced significant social and economic changes, with the Industrial Revolution transforming Britain.
Continue ReadingBernard Baruch
American businessman and philanthropist
Born
August 19th, 1870 155 years ago
Died
June 20th, 1965 61 years ago — 94 years old
A prominent businessman and philanthropist, made significant contributions to finance and politics. Played a crucial role as a financial advisor during World War I and served on the War Industries Board. Later influenced economic policy through involvement in various government committees and agencies. Engaged in philanthropy and established the Baruch Foundation, supporting education and healthcare initiatives. Additionally, had a strong interest in public service and provided guidance in economic matters throughout his life.
Continue ReadingAxel von Fersen the Younger
Swedish general and politician
Born
September 4th, 1755 270 years ago
Died
June 20th, 1810 216 years ago — 54 years old
Served as a prominent general and politician in Sweden during the 18th century. Participated significantly in the Swedish military during the Russo-Swedish War. Held influential positions within the Swedish government and was involved in various political movements. Advocated for military reforms and modernization within the Swedish army. Maintained connections with other European powers and played a role in the politics of his time.
Continue ReadingRaphaël Salem
Mathematician and academic
Born
November 7th, 1898 127 years ago
Died
June 20th, 1963 63 years ago — 64 years old
Contributed significantly to the fields of analysis and mathematics. Worked at various academic institutions, focusing on functional analysis and providing insight into the theory of functions of real and complex variables. Published numerous research papers and helped advance mathematical education in both Greece and France. Played a pivotal role in the mathematical community through teaching and mentoring students.
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