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End Ordovician: 440 million years ago, 86% of all species lost, including graptolites; Late Devonian: 375 million years ago, 75% of species lost, including most trilobites; End Permian, The Great Dying: 251 million years ago, 96% of species lost, including tabulate corals, and most trees and synapsids
Seven generation stewardship is a concept that urges the current generation of humans to live and work for the benefit of the seventh generation into the future.It is believed to have originated with the Great Law of the Iroquois – which holds appropriate to think seven generations ahead and decide whether the decisions they make today would benefit their descendants.
Social generations are cohorts of people born in the same date range and who share similar cultural experiences. [11] The idea of a social generation has a long history and can be found in ancient literature, [12] but did not gain currency in the sense that it is used today until the 19th century. Prior to that, the concept "generation" had ...
Two species are described in the literature: A. ramidus, which lived about 4.4 million years ago [32] during the early Pliocene, and A. kadabba, dated to approximately 5.6 million years ago [33] (late Miocene). A. ramidus had a small brain, measuring between 300 and 350 cm 3.
Generation X: Born between 1965 and 1980 (ages 44 to 59) Members of Generation X were born between 1965 and 1980. According to Forbes, Gen X has been referred to as the "slacker generation" or the
Gen Alpha is the youngest generation to date, encompassing those born from 2011 to 2024. This generation is known for being digital natives, even more so than Gen Z, having been born into a world ...
Human history is the record of humankind from prehistory to the present. Modern humans evolved in Africa around 300,000 years ago and initially lived as hunter-gatherers.They migrated out of Africa during the Last Ice Age and had spread across Earth's continential land except Antarctica by the end of the Ice Age 12,000 years ago.
Demographers typically segment the world population into six living generations: GI (born 1901—1926), mature/silents (born 1927—1945), baby boomers (born 1946—1964), generation X (born 1965 ...