Ronald Graham
Mathematician and theoretical computer scientist
Mathematician and theoretical computer scientist
2020
6 years ago — 85 years old
Scientists & Innovators
United States
Contributions included work in various fields of mathematics, particularly in combinatorics and graph theory. Served as a professor at the University of California, San Diego, influencing many students and researchers in the field. Collaborated with notable mathematicians, advancing the understanding of number theory and computational complexity. Was involved in the development of Graham's number, which became famous for its astonishingly large size. Actively participated in the American Mathematical Society and played a significant role in promoting mathematics through several initiatives.
Contributed to combinatorial geometry
Developed Graham's number
Advanced research in computational complexity
Competed prominently in tennis and cricket early in the 20th century. Achieved significant success in tennis, capturing four Wimbledon singles titles between 1910 and 1913. Gained recognition for outstanding athletic abilities, becoming a leading figure in New Zealand sports. Also represented New Zealand in cricket, showcasing versatility in both individual and team sports. His contributions laid the groundwork for future generations in New Zealand athletics.
Continue ReadingElected pope in 1769, served until 1774. Played a crucial role in the dissolution of the Society of Jesus, leading to the suppression of Jesuit missions globally. Oversaw various reform efforts within the papacy and the Catholic Church during a period of tumultuous political changes in Europe. Engaged in diplomacy to manage relations among Catholic states, particularly in light of rising Enlightenment ideologies. His tenure was marked by significant challenges, including managing opposition from various monarchies and church factions.
Continue ReadingNurtured an interest in gardening and environmental matters, contributing significantly to the development of horticulture and ecology. Wrote 'Sylva', a seminal work discussing trees and their cultivation, which influenced forestry practices in England. Participated in the Royal Society, promoting scientific inquiry and experimentation. Engaged in various civic duties throughout life, and held roles such as the Deputy Lieutenant of Surrey.
Continue ReadingReign spanned from 1861 to 1889, overseeing significant political and social changes in Portugal. Focused on modernizing the Portuguese economy and infrastructure, particularly in transportation and communications. Engaged in efforts to stabilize the monarchy during a time of political turmoil, including a series of constitutional crises and revolutions. Actively involved in cultural and scientific initiatives, promoting the arts and supporting the establishment of more educational institutions.
Continue ReadingAn influential religious leader, served as the abbess of the Quedlinburg Abbey in the Holy Roman Empire. During tenure, significant contributions to the spiritual and cultural development of the region were made. Hedwig oversaw the administration of the abbey and its lands, influencing local governance and fostering education among nuns. This period marked a notable consolidation of female monastic authority in the early modern period, emphasizing the importance of women's roles in religious life.
Continue ReadingRuled the Joseon Dynasty from 1724 to 1776, implementing significant reforms in governance and society. Sought to stabilize the kingdom through a focus on Confucian ideals and promoted civil service examinations. Addressed social issues such as famine relief and corruption within the bureaucracy. Oversaw a flourishing of culture, particularly in literature and the arts, during the latter part of the dynasty. His reign was marked by efforts to strengthen royal authority and diminish factional conflicts.
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