GMAT
Maxwell's theory of Electromagnetism in 1873 was the first "unified field theory," with Electroweak in 1961 only being the other, because no further theory has united the electroweak field with either the Strong (Hadronic) force or Gravity.
Maxwell's theory of Electromagnetism in 1873 was the first "unified field theory," and Electroweak in 1961 the only other, as no further theory has united the electroweak field with either the Strong (Hadronic) force or Gravity.
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