This dimension groups space and astronomy concepts by the year each one was first formulated. Wikipedia notes that astronomy "is one of the oldest natural sciences," with early civilizations already making "methodical observations of the night sky" long before its modern mathematical concepts took shape. Browsing by formulated year lets a visitor compare ideas that arose in the same period of the field's development.
Facts
Comparison
Field Origin Era Formulated Year
Sources
1. Wikipedia: Physical cosmology
Wikimedia FoundationPhysical cosmology, lead sectionQuote, Physical cosmology, lead section
Physical cosmology, as it is now understood, began in 1915 with the development of Albert Einstein's general theory of relativity.
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