BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Have people always lived in families? Detailed answer Directory / Big encyclopedia. Questions for quiz and self-education Did you know? Have people always lived in families? No one knows how the first family arose. Excavations in ancient caves show that men, women and children lived together in small groups. But these groups were not families of father, mother, and children (as we understand it now), although women probably cared primarily for their own children. The "family" kept the fire and protected themselves from wild animals with the help of primitive weapons. The family way of life is more necessary for a person than for other living beings. And this is because the most helpless creature on earth is a human child. Most insects and other lower life forms can move and feed as soon as they are born. But the young of higher forms of life - human or animal - must be fed and protected. The father usually brings food for the mother and protects the baby from enemies. The role of the mother is more important, as she feeds the cub with milk. Thus, the family appeared because it is necessary for the joint upbringing of offspring. During the hundreds of thousands of years that family life has existed, various forms of family organization have developed among different peoples. In some tribes, the mother's brother stood at the head of the family, and the father had little to do with the children. Pharaohs in ancient Egypt married their sisters. In biblical times and earlier, a man could have two or more wives. Women of some nations could have several husbands. A marriage in which a man or woman could have more than one spouse is called polygamy. There are still families in Africa and the Middle East where there are several wives, but this custom seems to be dying out. Author: Likum A. Random interesting fact from the Great Encyclopedia: What would happen if there was no dust? Would the world really be a much better place if there were no dust? The answer is: in some respects yes, in others no. What is dust, exactly? It is made up of particles of soil or other solid matter, and these particles are light enough to be lifted and carried by the wind. Where do these particles come from? Their source may be the remains of flora or fauna, sea salt, volcanic sand and desert sand, ash or soot. In most cases, dust is undesirable and useless. But, on the other hand, it helps to make the world more beautiful! The wonderful colors of sunrises and sunsets owe their beauty to a large extent to the dust scattered in the air. Dust particles in the upper air layers reflect the sun's rays. This makes sunlight visible for another hour or two after sunset. The colors that make up sunlight are refracted at different angles, reflecting off dust and water vapor particles scattered in the air. Sunsets are red because these particles refract the red rays of the sun in such a way that they become the last rays to disappear from view. Another important function of dust is associated with rain. The water vapor in the air would not liquefy too quickly if it weren't for the dust particles that serve as the center for each drop of water. Therefore, clouds, fog, rain are mainly formed from countless dust particles enveloped in liquid.
Test your knowledge! Did you know... ▪ What is the most common mammal? ▪ Where can you see and taste natural watermelon snow? ▪ Why do people have different sensitivity to extraneous noise during sleep? See other articles Section Big encyclopedia. Questions for quiz and self-education. Read and write useful comments on this article. Latest news of science and technology, new electronics: Machine for thinning flowers in gardens
02.05.2024 Advanced Infrared Microscope
02.05.2024 Air trap for insects
01.05.2024
Other interesting news: ▪ New spacesuits for astronauts from Boeing ▪ Google self-driving cars take to the roads News feed of science and technology, new electronics
Interesting materials of the Free Technical Library: ▪ section of the site Alternative energy sources. Article selection ▪ Article Shamefully indifferent to good and evil. Popular expression ▪ Article How old is the Earth? Detailed answer ▪ Baobab article. Legends, cultivation, methods of application
Leave your comment on this article: All languages of this page Home page | Library | Articles | Website map | Site Reviews www.diagram.com.ua |