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The Gamma World Campaign Setting (ISBN 0-7869-1629-X) was a 192-page softcover book written by Andy Collins and Jeff Grubb, published in 2000 by Wizards of the Coast (WOTC), only a month after WOTC announced its cancellation of the Alternity line. This version of Gamma World is unique as the only one not to have accessories or supplements.
Griesbachian-Dienerian boundary-event. 252. Late eruptions of the Siberian Traps [ 22] Permian. Permian–Triassic extinction event. 252 Ma. Large igneous province (LIP) eruptions [ 23] from the Siberian Traps, [ 24] an impact event (the Wilkes Land Crater ), [ 25] an Anoxic event, [ 26] an Ice age, [ 27] or other possible causes.
The geologic time scale is a way of representing deep time based on events that have occurred throughout Earth's history, a time span of about 4.54 ± 0.05 Ga (4.54 billion years). [5] It chronologically organises strata, and subsequently time, by observing fundamental changes in stratigraphy that correspond to major geological or ...
Graphical timelines provide a visual representation for the timespan of multiple events that have a particular duration, over the course of centuries or millennia. Timelines by year are timelines for one particular year that show the developments for that year within the topical area of that timeline.
The estimated time until a gamma-ray burst, or massive, hyperenergetic supernova, occurs within 6,500 light-years of Earth; close enough for its rays to affect Earth's ozone layer and potentially trigger a mass extinction, assuming the hypothesis is correct that a previous such explosion triggered the Ordovician–Silurian extinction event ...
The timeline of the early universe outlines the formation and subsequent evolution of the Universe from the Big Bang (13.799 ± 0.021 billion years ago) to the present day. An epoch is a moment in time from which nature or situations change to such a degree that it marks the beginning of a new era or age . Times on this list are measured from ...
Timeline of space exploration. This is a timeline of space exploration which includes notable achievements, first accomplishments and milestones in humanity's exploration of outer space . This timeline generally does not distinguish achievements by a specific country or private company, as it considers humanity as a whole.
The timeline of the COVID-19 pandemic lists the articles containing the chronology and epidemiology of SARS-CoV-2, [1] the virus that causes the coronavirus disease 2019 ( COVID-19) and is responsible for the COVID-19 pandemic . The first human cases of COVID-19 occurred in Wuhan, People's Republic of China, on or about 17 November 2019. [2]