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Between around 3000 BC and 1000 AD, the Bantu expansion swept from north-western Central Africa (modern day Cameroon) across much of sub-Saharan Africa, laying the foundations for states in Central, Eastern, and Southern regions. [3] In most African societies the oral word is revered, and as such they have generally recorded their history orally.
The team, which was then composed of only Alemseged and three Ethiopian assistants, found the skull of a fossilized child that year and over the course of five successive field seasons between 2000 and 2005, after an intensive process of screening and excavation, the team recovered the partial skeleton of Selam: the earliest and most complete ...
The finding that "Mitochondrial Eve" was relatively recent and African seemed to give the upper hand to the proponents of the Out of Africa hypothesis.But in 2002, Alan Templeton published a genetic analysis involving other loci in the genome as well, and this showed that some variants that are present in modern populations existed already in Asia hundreds of thousands of years ago. [31]
The Evolution of Media, 2007, Rowman & Littlefield; Poe, Marshall T. A History of Communications: Media and Society From the Evolution of Speech to the Internet (Cambridge University Press; 2011) 352 pages; Documents how successive forms of communication are embraced and, in turn, foment change in social institutions. Wheen, Andrew.
Human communication was initiated with the origin of speech approximately 100,000 BCE. [1] Symbols were developed about 30,000 years ago. The imperfection of speech allowed easier dissemination of ideas and eventually resulted in the creation of new forms of communication, improving both the range at which people could communicate and the longevity of the information.
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1924: Edwin Hubble: the discovery that the Milky Way is just one of many galaxies; 1925: Erwin Schrödinger: Schrödinger equation (Quantum mechanics) 1925: Cecilia Payne-Gaposchkin: Discovery of the composition of the Sun and that hydrogen is the most abundant element in the Universe; 1927: Werner Heisenberg: Uncertainty principle (Quantum ...
This process is responsible for the many diverse life forms in the world. The modern understanding of evolution began with the 1859 publication of Charles Darwin's On the Origin of Species. In addition, Gregor Mendel's work with plants helped to explain the hereditary patterns of genetics. [11]