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The timeline of the evolutionary history of life represents the current scientific theory outlining the major events during the development of life on planet Earth. Dates in this article are consensus estimates based on scientific evidence , mainly fossils .
English: Timeline of generations in the Western world as in its Wikipedia article with notable events by CMG Lee. The retirement and life expectancy ages are approximate due to variations in place and time. In the SVG file, click or hover over a generation to highlight it. See references on Generation#Western_world for sources.
The dates for each age can vary by region. On the geologic time scale, the Holocene epoch starts at the end of the last glacial period of the current ice age (c. 10,000 BC) and continues to the present. The beginning of the Mesolithic is usually considered to correspond to the beginning of the Holocene epoch.
Here's how to define the different generation names, from millennial to Gen Alpha. Gen Z this, boomer that. ... Gen Alpha is the youngest generation to date, encompassing those born from 2011 to 2024.
The timeline of human evolution outlines the major events in the evolutionary lineage of the modern human species, Homo sapiens, throughout the history of life, beginning some 4 billion years ago down to recent evolution within H. sapiens during and since the Last Glacial Period.
The start and end of a new generation is sometimes vague, but these generation group names are often used for individuals born between the following years: Greatest Generation: 1901-1927 Silent ...
With the start of a new year on Jan. 1, 2025, comes the emergence of a new generation. 2025 marks the end of Generation Alpha and the start of Generation Beta, a cohort that will include all ...
According to historian David Kaiser, who was consulted for the film, Generation Zero "focused on the key aspect of their theory, the idea that every 80 years of American history has been marked by a crisis, or 'fourth turning', that destroyed an old order and created a new one". Kaiser said Bannon is "very familiar with Strauss and Howe's ...