This article is intended to give a review of the history of the classical aspects of unified field theories in the 20th century. It includes brief technical descriptions of the theories suggested, short biographical notes concerning the scientists involved, and an extensive bibliography. The present first installment covers the time span between 1914 and 1933, i.e., when Einstein was living and working in Berlin - with occasional digressions into other periods. Thus, the main theme is the unification of the electromagnetic and gravitational fields augmented by short-lived attempts to include the matter field described by Schrödinger's or Dirac's equations. While my focus lies on the conceptual development of the field, by also paying attention to the interaction of various schools of mathematicians with the research done by physicists, some prosopocraphical remarks are included.

中文翻译：

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关于统一场论的历史。

本文旨在回顾20世纪统一场论经典方面的历史。它包括所建议理论的简短技术说明，有关科学家的简短传记说明以及广泛的参考书目。本期第一期涵盖了1914年至1933年之间的时间跨度，即爱因斯坦在柏林生活和工作的时间-偶尔会涉及其他时期。因此，主要主题是通过短暂尝试将电磁场和引力场统一起来，以尝试包含薛定er或狄拉克方程所描述的物质场。尽管我专注于该领域的概念发展，但同时也关注数学家的各种流派与物理学家所做研究的相互作用，