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On the First Principles (Greek: Περὶ Ἀρχῶν / Peri Archon; Latin: De Principiis) is a theological treatise by the Christian writer Origen. It was the first systematic exposition of Christian theology. [1] It is thought to have been written around 220–230 AD. The full text has not been completely preserved. When Origen was around ...
[151] [150] Thus, according to Origen, Christ was both human and divine, [151] [150] but like all human souls, Christ's human nature was existent from the beginning. [152] [150] Origen was the first to propose the ransom theory of atonement in its fully developed form, [153] although Irenaeus had previously proposed a prototypical form of it. [153]
Original mapping by John Snow showing the clusters of cholera cases in the London epidemic of 1854, which is a classical case of using human geography. Human geography or anthropogeography is the branch of geography which studies spatial relationships between human communities, cultures, economies, and their interactions with the environment, examples of which include urban sprawl and urban ...
The first debates about the nature of human evolution arose between Thomas Henry Huxley and Richard Owen. Huxley argued for human evolution from apes by illustrating many of the similarities and differences between humans and other apes, and did so particularly in his 1863 book Evidence as to Man's Place in Nature .
Alpha keratin first evolves here; it is used in the claws of modern amniotes, and hair in mammals, indicating claws and a different type of scales evolved in amniotes (complete loss of gills as well). [20] Evolution of the amniotic egg allows the amniotes to reproduce on land and lay shelled eggs on dry land. They did not need to return to ...
Origins: The Journey of Humankind is an American documentary television series that premiered on the National Geographic channel on March 6, 2017. [2] Hosted by Jason Silva, with narration from Mark Monroe, the series uses re-enactments to showcase major inventions and events in the history of human evolution that have been responsible for our modernization.
The oldest human skeletal remains are the 40ky old Lake Mungo remains in New South Wales, but human ornaments discovered at Devil's Lair in Western Australia have been dated to 48 kya and artifacts at Madjedbebe in Northern Territory are dated to at least 50 kya, and to 62.1 ± 2.9 ka in one 2017 study. [26] [27] [28] [29]
The migrating modern human populations are known to have interbred with earlier local populations, so that contemporary human populations are descended in small part (below 10% contribution) from regional varieties of archaic humans. [note 2] After the Last Glacial Maximum, North Eurasian populations migrated to the Americas about 20,000 years ago.