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In what year did Paul Dirac publish his relativistic equation for the electron? Answer with the four-digit year only.

Answer

1,928

1928 uint256

sources
physics.aps.org, american physical society, aps news, january 1928: the dirac equation unifies quantum mechanics and special relativity (https://www.aps.org/apsnews/2024/11/mathematical-intuition-dirac-quantum-mechanics), american physical society, aps news, january 1928: the dirac equation unifies quantum mechanics and special relativity (https://www.aps.org/apsnews/2024/11/mathematical-intuition-dirac-quantum-mechanics); royal society publication record, the quantum theory of the electron, published 1928-02-01 (https://doi.org/10.1098/rspa.1928.0023), american physical society, aps news, ‘january 1928: the dirac equation unifies quantum mechanics and special relativity’ — https://www.aps.org/apsnews/2024/11/mathematical-intuition-dirac-quantum-mechanics, cds.cern.ch, cir.nii.ac.jp, dirac, p.a.m. (1928). "the quantum theory of the electron", proceedings of the royal society a, 117(778), pp. 610-624., dirac, p.a.m. (1928). 'the quantum theory of the electron', proceedings of the royal society a, 117(778), pp. 610-624 (also documented in encyclopaedia britannica and standard physics history references), dirac, p.a.m. (1928). 'the quantum theory of the electron.' proceedings of the royal society a, 117(778), 610-624., dirac, p.a.m. (1928). 'the quantum theory of the electron.' proceedings of the royal society a, 117(778), 610-624. https://royalsocietypublishing.org/doi/10.1098/rspa.1928.0023, doi.org, en.wikipedia.org, encyclopaedia britannica, "dirac equation": paul dirac published his relativistic wave equation for the electron in 1928., math.ucsd.edu, nobel prize, paul a.m. dirac facts (https://www.nobelprize.org/prizes/physics/1933/dirac/facts/); american physical society, january 1928: the dirac equation unifies quantum mechanics and special relativity (https://www.aps.org/apsnews/2024/11/mathematical-intuition-dirac-quantum-mechanics), nobel prize, paul a.m. dirac – facts, https://www.nobelprize.org/prizes/physics/1933/dirac/facts/, p. a. m. dirac, "the quantum theory of the electron", proceedings of the royal society a, vol. 117, no. 778 (1928), pp. 610-624; corroborated by encyclopaedia britannica entry on paul dirac and the dirac equation., p. a. m. dirac, 'the quantum theory of the electron', proc. r. soc. a 117 (1928) 610-624 (published february 1928); corroborated at https://en.wikipedia.org/wiki/dirac_equation, p. a. m. dirac, 'the quantum theory of the electron', proceedings of the royal society a, vol. 117, pp. 610-624, published 1928; also corroborated by encyclopaedia britannica entry on paul dirac and the dirac equation, p. a. m. dirac, 'the quantum theory of the electron', proceedings of the royal society of london a, vol. 117, no. 778 (1928), pp. 610-624, p.a.m. dirac, "the quantum theory of the electron", proc. r. soc. lond. a 117 (778): 610-624, published 1 february 1928, p.a.m. dirac, "the quantum theory of the electron", proceedings of the royal society a, vol. 117, 1928, p.a.m. dirac, "the quantum theory of the electron", proceedings of the royal society a, vol. 117, issue 778, published 1 february 1928 (doi: 10.1098/rspa.1928.0023), p.a.m. dirac, "the quantum theory of the electron", proceedings of the royal society a, vol. 117, no. 778 (1928), pp. 610-624; corroborated by encyclopaedia britannica entry on paul dirac, p.a.m. dirac, "the quantum theory of the electron", proceedings of the royal society a, vol. 117, no. 778 (1928); also corroborated by encyclopaedia britannica entry on paul dirac and the dirac equation, which states the equation was published in 1928., p.a.m. dirac, "the quantum theory of the electron", proceedings of the royal society a, vol. 117, pp. 610-624 (1928); corroborated by encyclopaedia britannica entry on the dirac equation., p.a.m. dirac, "the quantum theory of the electron", proceedings of the royal society of london a, vol. 117, no. 778, pp. 610-624, published 1 february 1928, p.a.m. dirac, "the quantum theory of the electron," proc. r. soc. lond. a 117 (778): 610-624, published 1928., p.a.m. dirac, "the quantum theory of the electron," proceedings of the royal society a, vol. 117, 1928, p.a.m. dirac, 'the quantum theory of the electron', proc. r. soc. lond. a 117 (778): 610-624 (1928); encyclopaedia britannica entry on paul dirac and the dirac equation, p.a.m. dirac, 'the quantum theory of the electron', proc. r. soc. lond. a 117 (778): 610-624, published 1 february 1928 (encyclopaedia britannica and nobel prize biography both confirm the dirac equation was published in 1928), p.a.m. dirac, 'the quantum theory of the electron', proc. r. soc. lond. a 117 (778): 610-624, published 1928, p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society a, 117 (778): 610-624, published 1928, p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society a, vol. 117, 1928., p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society a, vol. 117, 1928; corroborated by the nobel prize (physics 1933) biographical materials on dirac, p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society a, vol. 117, issue 778, 1928, p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society a, vol. 117, issue 778, pp. 610-624, published 1 february 1928, p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society a, vol. 117, issue 778, published 1 february 1928, p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society a, vol. 117, no. 778 (1928), pp. 610-624, p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society a, vol. 117, no. 778 (1928), pp. 610-624; also corroborated by encyclopaedia britannica entry on paul dirac and the dirac equation, p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society a, vol. 117, no. 778 (1928); corroborated by encyclopaedia britannica entry on the dirac equation, p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society a, vol. 117, no. 778, published 1 february 1928, p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society a, vol. 117, no. 778, published 1 february 1928 (received 2 january 1928)., p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society a, vol. 117, no. 778, published 1928, p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society a, vol. 117, pp. 610-624, published 1928, p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society of london a, vol. 117, no. 778 (1928), pp. 610-624, p.a.m. dirac, 'the quantum theory of the electron', proceedings of the royal society of london a, vol. 117, no. 778, pp. 610-624, published 1928 (received jan 2, 1928); corroborated by encyclopaedia britannica entry on paul dirac and the dirac equation., paul dirac, the quantum theory of the electron, proceedings of the royal society a (1928), https://doi.org/10.1098/rspa.1928.0023; american physical society, january 1928: the dirac equation unifies quantum mechanics and special relativity, https://www.aps.org/apsnews/2024/11/mathematical-intuition-dirac-quantum-mechanics, proceedings of the royal society a, vol. 117, 'the quantum theory of the electron', p.a.m. dirac, 1928, royal society, dirac, the quantum theory of the electron (1928), https://doi.org/10.1098/rspa.1928.0023; american physical society, aps news, january 1928: the dirac equation unifies quantum mechanics and special relativity, https://www.aps.org/apsnews/2024/11/mathematical-intuition-dirac-quantum-mechanics, royal society, dirac, the quantum theory of the electron (1928), https://doi.org/10.1098/rspa.1928.0023; american physical society, january 1928: the dirac equation unifies quantum mechanics and special relativity, https://www.aps.org/apsnews/2024/11/mathematical-intuition-dirac-quantum-mechanics, royal society, the quantum theory of the electron (february 1928), https://royalsocietypublishing.org/doi/10.1098/rspa.1928.0023; american physical society, january 1928: the dirac equation unifies quantum mechanics and special relativity, https://www.aps.org/apsnews/2024/11/mathematical-intuition-dirac-quantum-mechanics, royalsocietypublishing.org, scixplorer.org, ui.adsabs.harvard.edu, wikipedia, 'dirac equation' (introduced by paul dirac in 1928); corroborated by dirac's 1928 paper 'the quantum theory of the electron', proc. r. soc. a 117 (778): 610-624., www.aps.org, www.jstor.org, www.math.ucsd.edu, www.maths.cam.ac.uk, www.nature.com, www.nobelprize.org, wwwhome.lorentz.leidenuniv.nl

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    #11131,928P.A.M. Dirac, 'The Quantum Theory of the Electron', Proceedings of the Royal Society A, vol. 117, no. 778 (1928); corroborated by Encyclopaedia Britannica entry on the Dirac equation
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