Nobel Award Announced for Photoelectric Law
The Royal Swedish Academy of Sciences announced Einstein as the recipient of the reserved 1921 Nobel Prize in Physics, emphasizing his discovery of the law of the photoelectric effect.
Historical biography archive · Updated 2026-11-03
Albert Einstein Biography and Timeline — Page 2
Follow Albert Einstein through 56 dated historical records for Germany.
Albert Einstein, historical timeline
A chronological timeline drawn from matching World History Database records.
56Distinct records
2 of 2Page
1922–1928Years on this page
1922
Einstein Misses Stockholm Ceremony during Japan Journey
Einstein was travelling in Asia when the 1921 Physics Prize was presented in Stockholm, so he did not attend the December ceremony honouring his photoelectric work.
Photoelectric Law Highlighted in Nobel Citation
The Nobel citation singled out Einstein's quantitative law of the photoelectric effect, giving formal recognition to a result rooted in his 1905 light-quantum hypothesis.
1923
Compton Scattering Strengthens Light-Quantum Momentum Picture
The emerging evidence from Compton scattering gave strong experimental support to the energy-and-momentum properties of radiation quanta that Einstein had advocated for years.
Photon Momentum Evidence Reinforces Einstein Radiation Theory
Experimental scattering results increasingly supported the view that individual radiation quanta carry directed momentum, a requirement already embedded in Einstein's 1917 radiation theory.
1924
Bose Counting Recasts Planck Radiation Law
Einstein recognized that Bose's counting method obtained Planck's spectrum by treating light quanta statistically without relying on the classical independent-particle counting used for ordinary gases.
Bose Light-Quantum Manuscript Reaches Einstein
Satyendra Nath Bose sent Einstein a manuscript deriving Planck's radiation law by a new statistical counting method applied directly to indistinguishable light quanta.
Einstein Recommends Bose Radiation Paper for Publication
Einstein submitted Bose's translated paper for publication and endorsed its new derivation of the black-body radiation law from quantum statistics.
Einstein Translates Bose Photon Statistics Paper
Einstein translated Bose's manuscript on the quantum statistics of radiation into German after recognizing the importance of its treatment of light quanta.
Photon Indistinguishability Gains Statistical Role
Bose's method, promoted by Einstein, treated light quanta as statistically indistinguishable objects, an idea that became fundamental to quantum statistics.
1925
BKS Statistical Conservation Challenged by Photon Picture
Einstein continued to favour exact energy and momentum conservation in individual radiation processes rather than the merely statistical conservation proposed by the Bohr-Kramers-Slater approach.
Einstein Extends Radiation Duality Analogy to Matter
Einstein drew an analogy between the wave-particle duality he had identified for radiation and the emerging wave description of material particles, reinforcing the broader quantum duality concept.
1926
Canal-Ray Radiation Coherence Test Proposed
Einstein proposed experiments on light emitted by moving canal-ray atoms to test how quantum emission events could coexist with the coherence properties expected from wave optics.
Rupp Experiments Initially Reported as Supporting Coherence
Emil Rupp reported experimental results that appeared to support Einstein's proposed coherence tests, although the measurements were later recognized as unreliable and fraudulent.
Wire-Grid Interference Test Suggested for Emitted Light
Einstein devised a wire-grid arrangement intended to probe the coherence length and wave character of radiation emitted in individual atomic processes.
1928
Tetrad Fields Introduced for Unified Gravitation
Einstein adopted tetrad fields and distant parallelism as a new geometric language in an attempt to place gravitation and electromagnetism inside one unified classical field theory.
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.