It evolved in Africa about 2 million years ago. It evolved in Africa about 2.5 million years ago.Īn extinct human species. People who support themselves by hunting wild animals and gathering wild edible plants and insects. The period of the Stone Age associated with the ancient Agricultural Revolution(s). The period of the Stone Age associated with the evolution of humans. It was followed in some places by the Bronze Age and more generally by the Iron Age. The historical period characterized by the production of tools from stone and other nonmetallic substances. It includes archaic forms such as Neanderthals (now extinct) and all modern humans. It evolved in Africa about 200,000 years ago. The several extinct species of humanlike primates that existed during the Pleistocene era (genus Australopithecus) The biological family that includes humans and humanlike primates. The biological theory that, over time, changes occurring in plants and animals, mainly as a result of natural selection and genetic mutation, result in a new species. We are talking about twelve months with thirty days each, all without forgetting that another five days had to be added to the month that closed the year.The biological process by which variations that enhance a population’s ability to survive in a particular environment become dominant in a species over very long periods and lead to the evolution of a new species. In this sense, the solar calendar is quite close to current calendars. However, to perfect certain defects of this system, they opted for a solar calendar.
Well, initially, the Egyptians used a lunar calendar. Today, the Gregorian calendar has established itself as a reference in practically the whole world. However, it is not known if these peculiar prophylactics were used for contraceptive purposes or were simply part of ancient rituals. Regarding sexuality and contraceptive methods, there has been evidence of condoms created with skins and guts.
And, there will be those who think that objects such as the eye pencil is a recent article, more typical of contemporary societies, however, the Egyptians also had eyeliner pencils. Furthermore, the first splints are attributed to this civilization, since these date nothing more and nothing less than the year 2400 BC and were used to treat fractures.ĭespite being one of the first civilizations, image and personal care was an aspect that also greatly concerned the Egyptians. Egyptian inventions: medicine and personal imageĪs in the present, the Egyptians also had their own "specialists" to treat their conditions. The development of a network of terrestrial roads erected with materials such as limestone and sandstone allowed a more agile transport of the materials that were extracted from mines and quarries. Not only river transport was decisive for the economy of Ancient Egypt. Likewise, the development of the canals allowed them to regulate the flow of water. The development of canals in a land crossed by a river as mighty and long as the Nile greatly facilitated the transport of goods by river. However, the pyramids were not the only element that the Egyptians contributed to the construction. Proof of this is the pyramid of Tutankhamun, located in the Valley of the Kings or the Great Pyramid of Giza, considered one of the seven wonders of the world. Egyptian inventions: building and engineeringĪnother of the great contributions of the Egyptians was their contribution to architecture.įor this reason, we find colossal pyramidal structures in which pharaohs rested. Thus, Egypt, along with Mesopotamia, was one of the first civilizations to use a system of pictograms with its own rules as a means of written communication. As for writing, as we mentioned earlier, they used a system of hieroglyphics.
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