Since the 1800s, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics. In particular, unification of gravitation and electromagnetism was actively pursued by several physicists and mathematicians in the years between World War I and World War II.

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  • Since the 1800s, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics. In particular, unification of gravitation and electromagnetism was actively pursued by several physicists and mathematicians in the years between World War I and World War II. This work spurred the purely mathematical development of differential geometry. Albert Einstein is the best known of the many physicists who attempted to develop a classical unified field theory. This article describes various attempts at a classical, relativistic unified field theory. For a survey of classical relativistic field theories of gravitation that have been motivated by theoretical concerns other than unification, see Classical theories of gravitation. For a survey of current work toward creating a quantum theory of gravitation, see quantum gravity.
  • 经典统一场论（英文：classical unified field theory）是试图在经典物理的框架下建立一个单一自洽的场论模型，从而能够解释自然界中所有基本相互作用的所有这类尝试的总称。经典统一场论可以被认为是统一场论的一个分支，在第一次世界大战和第二次世界大战之间有很多物理学家和数学家都致力于统一引力和电磁理论方面的研究，这些工作促进了微分几何在纯数学领域的发展。爱因斯坦是最被人熟知的尝试建立统一场论的物理学家之一。 本条目意在介绍历史上多种尝试建立一个经典的、相对论性的统一场理论；至于现代物理学中试图建立一个相容於量子理论的引力理论的尝试，请参见量子引力。
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  • Since the 1800s, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics. In particular, unification of gravitation and electromagnetism was actively pursued by several physicists and mathematicians in the years between World War I and World War II.
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  • Classical unified field theories
  • 经典统一场论
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