BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
How did ads and advertisements come about? Detailed answer Directory / Big encyclopedia. Questions for quiz and self-education Did you know? How did ads and advertisements come about? To advertise means to give people some information. It can be a message about a product, about services and offers, and even about putting someone's name in public. Announcements arose naturally and from the very beginning were of the most diverse kind. For example, papyri have been found promising rewards for escaped slaves. They are three millennia old, but these are real announcements. Signs announcing the services offered were placed on the doors of houses in Greece and Egypt almost five thousand years ago. This is also a type of ad. With the invention of printing devices, advertisements began to appear in a new form. Around 1477 in London, the first printed advertisement in English announced the sale of a prayer book. The first newspaper advertisement appeared on the back page of a London newspaper in 1625. In the United States, the first paid advertisements were printed in 1704. By 1771, 31 newspapers were being published in the colonies, and all of them printed advertisements. It is known that today advertisements are printed not only in newspapers, but are also broadcast on radio and television. The first commercial information was heard on the radio around 1920. Commercial information on television was fully established only after the Second World War. This idea quickly spread, and today advertising shown on television is so close to all of us that many remember it better than any productions and films. Author: Likum A. Random interesting fact from the Great Encyclopedia: What are amphibians? Another name for amphibians - amphibians - comes from a Greek word meaning "living a double life." Most amphibians spend the initial part of their life in water, and then move to land. There are three groups or orders of amphibians: frogs, salamanders and caecilians. Various types of newts belong to salamanders. Worms are creatures that live in burrows. They are blind and have no legs or tail. There are more than 1040 species of amphibians. All of them do not reach a meter in length, with the exception of a giant salamander living in Japan, which can grow up to 1,5 m. Most amphibians do not differ in strength or speed of movement, although frogs can move quite quickly. Most of them are protected by a tendency to solitude and inconspicuous coloring. In addition, almost all amphibians are capable of producing toxic substances with their skin glands, and this serves them as the best defense against enemies. As adults, most amphibians have lungs, but they also breathe through their skin. Amphibians are usually found only in areas with a hot and temperate climate. As a rule, they do not live in salt water. Although adult amphibians usually live on land, they may return to the water during the breeding season. Here they lay their eggs, and here the young generation spends the initial period of their life in the form of tadpoles, feeding mainly on plant foods. Some amphibians have rather strange methods of caring for their eggs. A female tree frog from Brazil builds a mud nest for her eggs while the male sits and croaks. The Suriname toad carries its eggs on its back. Amphibians that leave their eggs unprotected in the water usually lay hundreds of them at once, bonding them into strips or heaps with a sticky substance. Those who take care of their offspring lay fewer eggs.
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