Expanding Universe Paper
Adopts an expanding cosmological model and abandons the need for his earlier static-universe construction.
Albert Einstein · Year
Albert Einstein records dated 1931, drawn directly from the World History Database source collection.

Adopts an expanding cosmological model and abandons the need for his earlier static-universe construction.
Publishes a non-static cosmological model within general relativity, accepting cosmic expansion and dispensing with the static balance that motivated his cosmological constant.
Gives three Rhodes Memorial Lectures on relativity, cosmology and his latest work in theoretical physics.
Receives the Prix Jules Janssen for distinguished work in astronomy and astrophysics.
Einstein abandons the need for a static cosmological model after cosmic expansion becomes established, leaving the cosmological constant without its original motivation.
Abandons his earlier static cosmological model as expanding-universe observations and relativistic cosmology make a dynamical universe the more credible interpretation.
Visits Mount Wilson and discusses observational cosmology, confronting evidence that distant galaxies exhibit the redshift-distance relation associated with cosmic expansion.
Receives an honorary Doctor of Science degree from the University of Oxford.