Early Unified Field Program
Begins sustained attempts to combine gravitation and electromagnetism within a single field framework.
Albert Einstein · Year
1922
Albert Einstein records dated 1922, drawn directly from the World History Database source collection.
Japan Lecture Tour
Travels through Japan giving lectures and public talks on relativity and modern physics.
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.
The Meaning of Relativity
The Meaning of Relativity is published from the four lectures Einstein delivered at Princeton in May 1921.
The Meaning of Relativity Published
Publishes The Meaning of Relativity from his Princeton lectures, giving a systematic account of special relativity, tensor methods, gravitation and cosmological applications.
Paris Relativity Lecture Series
Presents relativity to French scientific audiences during a highly publicised Paris visit, explaining both the special theory and the geometric theory of gravitation.
Einstein-Bergson Time Debate
Debates Henri Bergson over the meaning of time, confronting philosophical objections to the operational treatment of simultaneity in special relativity.
Wallal Eclipse Relativity Test
A total solar eclipse expedition at Wallal obtains measurements of gravitational light deflection that provide another observational test of Einstein's relativity prediction.
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.
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.
Kyoto Relativity Lecture
Explains how he developed the theory of relativity in a lecture at Kyoto University.