Timeline of nuclear fusion

This timeline of nuclear fusion is an incomplete chronological summary of significant events in the study and use of nuclear fusion. == 1920s == 1920 Based on F.W. Aston's measurements of the masses of low-mass elements and Einstein's discovery that E = m c 2 {\displaystyle E=mc^{2}} , Arthur Eddington proposes that large amounts of energy released by fusing small nuclei together provides the energy source that powers the stars.

Source: Wikipedia — Timeline of nuclear fusion (CC BY-SA 4.0)