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It is considered one of the marvels of engineering and one of the most influential inventions that sustained the flourishing of civilization. The oldest known wheel is from Mesopotamia, around 3500 BC. C. and it is believed that it was used to move heavy loads with greater speed and practicality.

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The invention of nails dates back several thousand years and was possible only after the development of the metal domain, they were used to make construction more sophisticated, around 3400 BC. in Egypt where bronze nails were found.

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For thousands of years, humanity communicated through oral language. And he didn't seem to need anything else. If something had to be represented, drawings, paintings, or symbols were used.
But as our brain evolved, the need to find a way that the words did not blow away the wind grew ... Writing developed in different places at the same time: in Egypt, Mesopotamia, or China, some time ago. 7,000 years. And its impact was enormous.

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Thanks to its existence, countless lives have been saved. In fact, with its appearance, diseases that until then were considered deadly stopped being so. Today, we have to monitor the disposal of medicines, because they can have harmful effects on the environment.

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Making and controlling fire was a before and after for human development. Thanks to fire, man was able to warm himself, generate light, cook, make small utensils and even defend himself from attacks. According to archaeological research, it was the Homo Erectus species who discovered fire, that is, fire was discovered 1.6 million years ago. At that time, our ancestors used them as firearms, a tool that helped survival.