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Jesse Ernest Wilkins Jr. worked on the Manhattan Project at the University of Chicago beginning in 1944, As a physicist and mathematician, he worked immediately under Eugene Wigner, director of the Theoretical Physics group. The group's theoretical work provided the basis for the Hanford, Washington fission reactor.
Nathaniel Baldwin. Nathaniel Baldwin (December 1, 1878 – January 19, 1961) [1] was an American inventor and industrialist, [2] known for his improved telephonic earphone, among other inventions. He was also a supporter of the early Mormon fundamentalist movement.
African Americans. The history of African Americans or Black Philadelphians in the city of Philadelphia, Pennsylvania has been documented in various sources. People of African descent are currently the largest ethnic group in Philadelphia. Estimates in 2010 by the U.S. Census Bureau documented the total number of people living in Philadelphia ...
African Americans. The role of African Americans in the agricultural history of the United States includes roles as the main work force when they were enslaved on cotton and tobacco plantations in the Antebellum South. After the Emancipation Proclamation in 1863-1865 most stayed in farming as very poor sharecroppers, who rarely owned land.
1904: The Fleming valve, the first vacuum tube and diode, is invented by John Ambrose Fleming. 1907: The first free flight of a rotary-wing aircraft is carried out by Paul Cornu. 1907: Leo Baekeland invents bakelite, the first plastic made from synthetic components.
e. Historically black colleges and universities (HBCUs) are institutions of higher education in the United States that were established before the Civil Rights Act of 1964 with the intention of primarily serving African Americans. [ 1 ] Most of these institutions were founded during the Reconstruction era after the Civil War and are ...
Approximately 5000 free African-American men helped the American Colonists in their struggle for freedom. One of these men, Agrippa Hull, fought in the American Revolution for over six years. He and the other African-American soldiers fought in order to improve their white neighbor's views of them and advance their own fight of freedom. [51]
Prefixes such as La/Le, Da/De, Ra/Re and Ja/Je, and suffixes like -ique/iqua, -isha and -aun/-awn are common, as are inventive spellings for common names. The book Baby Names Now: From Classic to Cool—The Very Last Word on First Names places the origins of "La" names in African-American culture in New Orleans. [298]