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James Jeans

James Hopwood Jeans, English physicist, astronomer, and mathematician (died 1946)

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Born
September 11, 1877
Died
September 16, 1946
Zodiac sign
Virgo
Birth year
1877

About James Jeans

Sir James Hopwood Jeans was an English physicist, mathematician and an astronomer. He served as a secretary of the Royal Society from 1919 to 1929, and was the president of the Royal Astronomical Society from 1925 to 1927, and won its Gold Medal. In 1928, Jeans was the first to conjecture a steady state cosmology based on a hypothesized continuous creation of matter in the universe.

Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.

James Jeans timeline

  1. He served as a secretary of the Royal Society from 1919 to 1929, and was the president of the Royal Astronomical Society from 1925 to 1927, and won its Gold Medal.
  2. In 1928, Jeans was the first to conjecture a steady state cosmology based on a hypothesized continuous creation of matter in the universe.

The world when James Jeans was born

James Jeans was born in 1877. The year snapshot below places that birthday in its cultural and historical setting: the music and films people were following, the headlines shaping public life, and the everyday prices families encountered.

Headlines and milestones

  • Top headlineReconstruction ends — federal troops leave the South
  • Technology milestoneThomas Edison invents the phonograph
  • Notable inventionPhonograph — talking machine
  • World population~1.57B

United States snapshot

  • U.S. leaderRutherford B. Hayes
  • U.S. population44.2M

1877 versus 2026

These figures put everyday life in James Jeans's birth year beside the site's latest United States snapshot.

Measure18772026
Population44.2M341 million

Sources and editorial standards

This profile combines a biographical source with structured birthday and historical context. Sources recorded for this profile: Wikipedia, Encyclopaedia Britannica, Library of Congress, Wikidata. See our editorial policy for sourcing, corrections, and review standards.

Read the source biography on Wikipedia. Wikipedia text is available under the Creative Commons Attribution-ShareAlike License.