Cosmology
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Community entry: Cosmology
Cosmology is the study of the universe as a whole - encompassing the full span of time, scale and distance. Its main topics mix astronomy, mathematics and theoretical physics, to discover things about our universe which these areas cannot find in isolation.
Definition of "cosmos" from Wikipedia : The cosmos is the universe, especially when thought of as an orderly or harmonious system. Sometimes the term 'cosmos' is considered to be only the observed universe, while the term "universe" refers to all that exists whether it has been discovered or not (see ontology). 'Cosmos' is the "known universe." The word is derived from Greek. (compare; Multiverse)
By these definitions, it should be clear that some of the work of Leibniz, Spinoza and many other thinkers of the time could be counted as cosmology in a wide sense.