Réka Luca Jani
Hungarian tennis player and competitor
Competed on the professional tennis circuit primarily in singles and doubles events. Achieved a career-high singles ranking of World No. 70 in August 2015. Participated in major tournaments such as the Australian Open, French Open, Wimbledon, and US Open. Excelled in doubles, with a highest ranking of World No. 82. Represented Hungary in international competitions including the Fed Cup.
Achieved a career-high singles ranking of World No. 70
Played in all four Grand Slam tournaments
Represented Hungary in the Fed Cup
Other People Born on July 31st
Emperor Nijō of Japan
Emperor of Japan during Heian period
Born
July 31st, 1143 882 years ago
Died
1165 861 years ago — 22 years old
Ruled as the 75th emperor of Japan from 1158 to 1165. Son of Emperor Go-Shirakawa, ascended the throne at a young age. His reign coincided with the power struggles of the Fujiwara clan and the emergence of the samurai class. Known for political instability and influence from powerful regents, including the Fujiwara family. Sought to balance the traditional court practices with the rising military power, yet faced challenges during his reign. Abdicated in 1165 in favor of his son, continuing a lineage of power struggles in the imperial family.
Continue ReadingJohn Chiang
California State Controller and lawyer
Born
July 31st, 1962 63 years ago
Born in 1962, served as the 31st California State Controller from 2007 to 2015, overseeing the state's financial operations. Worked as a lawyer and held the position of California State Treasurer from 2015 to 2019. Played a significant role in the implementation of the state's financial policies and budgeting processes, contributing to the management of California's economy during his terms in office.
Continue ReadingJohn Canton
English physicist and academic researcher
Born
July 31st, 1718 307 years ago
Died
March 22nd, 1772 254 years ago — 53 years old
An English physicist and academic contributed significantly to the field of experimental physics. Best remembered for inventing the electrometer, which measured electric charge and helped advance the understanding of electricity. Served as a professor at the Royal Academy, where teachings included topics on natural philosophy and electrical experiments. Conducted experiments on heat conduction and published numerous papers on the behavior of electrified bodies.
Continue ReadingPrimo Levi
Italian chemist and Holocaust author
Born
July 31st, 1919 106 years ago
Died
April 11th, 1987 39 years ago — 67 years old
A chemist and writer, recognized for literary works exploring personal experiences during the Holocaust. Published the memoir 'Survival in Auschwitz,' detailing experiences in the concentration camp, and the book 'The Periodic Table,' which combines chemistry and memoir, reflecting on life through elements. Contributed to literature with essays and fiction, deeply influenced by the events of World War II.
Continue ReadingRobert C. Merton
Economist and Nobel Prize laureate
Born
July 31st, 1944 81 years ago
Significant contributions to financial economics. Developed the Black-Scholes model for option pricing alongside Fischer Black and Myron Scholes, earning a Nobel Prize in Economic Sciences in 1997. Contributed to the development of risk management techniques and dynamic asset allocation strategies. Held academic positions at renowned institutions, including Massachusetts Institute of Technology and Harvard University. Published numerous influential papers and books in finance, shaping the understanding of derivative instruments and market behavior.
Continue ReadingPaul Du Chaillu
Anthropologist and zoologist, explorer
Born
July 31st, 1835 190 years ago
Died
April 29th, 1903 123 years ago — 67 years old
Contributed to the understanding of African cultures and wildlife. Conducted extensive explorations in Equatorial Africa, bringing back significant information and specimens. Published works on gorillas, which spurred interest in primate studies, including 'Explorations and Adventures in Equatorial Africa'. Engaged in debates regarding the existence of gorillas and played a role in disseminating knowledge about the region's biodiversity and indigenous peoples.
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