Origins

hypothetical begin of the Universe through expansion out of an infinitely small and infinitely dense state

thumb|The Big Bang theory of modern cosmology postulates the universe evolved from a hot dense state. Cosmogony, also spelled as cosmogeny, or cosmogenesis, is any model concerning the origin of the cosmos or the universe.

Etiology (; alternatively spelled aetiology or ætiology) is the study of causation or origination. The word is derived from the Greek word (), meaning "giving a reason for" (). More completely, etiology is the study of the causes, origins, or reasons behind the way that things are, or the way they function, or it can refer to the causes themselves. The word is commonly used in medicine (pertaining to causes of disease or illness) and in philosophy, but also in physics, biology, psychology, political science, geography, cosmology, spatial analysis and theology in reference to the causes or orig

locations where civilization emerged

first formation of language

Wikimedia list article

hypotheses for the possible sources of the water on Earth

how the Earth's moon was formed

evolution, adaptation, and origin of birds

process which created the domestic dog

chemical elements or compounds with low boiling points associated with planet’s or moon’s crust or atmosphere

overview of the early history of Judaism

inquiries into the origins of SARS-CoV-2