The wheel is one of the most important inventions of mankind, dramatically improving the productivity and traffic as well as many other areas of human life. Caster was born when? So far, there is still a big question for historians.

Archaeologists found the oldest wheel in Mesopotamia region (dating from 3500 BC). On the drawings of ancient Sumer have portrayed a bread truck mounted circular saws wood from the trunk.

Wheel spokes are created on the first peninsula of Asia Minor (present-day Turkey) in about 2000 BC and was immediately introduced to Europe and China, India through the commercial driver. Wheels of this type is primarily used in passenger vehicles, particularly the Egyptians are used to transport goods and construction materials.

Wheels are widely used in ancient Greece and later in Rome. In America, the wheel is the maritime European migrants in the Americas when they find out.

Our ancestors knew the ancient festival of jute fibers, bark fibers as they used clothing and animal bones, tree spikes instead of buttons. The Egyptians and ancient Romans, the first hole on a cloth to dress the other end and then inserted through, or knotted force. Chinese people used centuries drawstring.

No one knows the buttons invented by anyone. Some historians assert, buttons from Roman times, some say from the time of ancient Greece, while a group of other scientists offer evidence of Asian origin of the buttons.

The first is a daisy in use since the 8th century and forever until the 18th century, it is considered luxury items that only dared to use the new rich. Chrysanthemum used king then gold and silver. The rich use elephant bones. But civilians are still forced knotted, or drawstrings. Early 18th century, Europeans began to produce steel and copper buttons. Until the late 19th century, buttons are still expensive items so it is usually removed when a new dress shirt buttons from old to bear.

About 3,000 years ago, a king to think of ways to protect yourself from being infected with venereal disease while on "acts". He used the bladders of fish in relation to sex.

The word "condom" (condom) was born in the 17th century, by which the implications of Carl II King of England called Condom think of ways to improve how to help the king to prevent unwanted birth avoid venereal disease during sex. The use of this medicine come sheep intestines cut, rolled out and stitch one end to make bags for the King of use. Later, people also learn by this method, but also use sheep intestines costly so it is often dried to reuse a few times.

By the year 1839, vulcanizing technology was born, that enables the creation of crude rubber into a form of new materials - rubber refining, with good resilience. This technology creates a great revolution for condoms. In 1844, the first type with rubber cover birth and until 1919, we made use of latex condoms. This type of elastic material having a very good, rolled very thin and can not smell the rubber. Condoms are used to this day.

The ancient people knew how to make a lot of fire: from the bark rubbing together two hours to beat on each other using flint ... And when the flame is created to maintain the flame quite elaborate.

In 1830, 19 year old chemist Charles Soria French invented salt of phosphorus, salt compounds generated from bertollete, white phosphorus and glue. Type of salt is very easy to use, when rubbed with any hard surface that can emit fire. Therefore, in many movies, the cowboy on his shoe Spot to cigarette smoking. Phosphate salt no unpleasant odor, but is harmful to health by white phosphorus contain harmful toxins.

To 1855, the chemist Johan Lunstrom do an experiment with red phosphorus, and coated with a thin layer of this substance on the surface of sandpaper. As a result he created new types of matches to ignite and less damaging to the health of users. This is the kind of salt we use today.

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