Birds do it, bees do it, people from early age also did it. But how has this activity changed over thousands of years, and even in just the last few decades?
Historical milestones of sex
Sex is associated with human existence, it is a biological method that helps humanity to breed and evolve. The first description of a condom appeared 15,000 years ago. Human knowledge gradually changed, knowing what really happened and history witnessed the dizzying change in the Renaissance.
Aristotle Greek philosopher (384 - 322 BC) has made great contributions to biology and race. For example, his theory shows that conception originating from male varieties, transplants into female bodies - became the basis for later philosophies.
The ancient Romans celebrated celebrations, festivals and praises of Bacchus - the god of wine - considered "chaos, lewd". These parties were held in the name of the Roman Senate around 186 BC.
In the East, the philosopher and Indian monk Vatsyayana created a book about the famous sexual art ' Kama Sutra' , with the aim of giving people a life of enjoyment. and pleasure.
In the Middle Ages , European churches controlled extramarital sex and marriage ceremonies became a religious ceremony under the supervision of the priest.
Syphilis first appeared in soldiers during the war between France and Naple in 1494. The disease spread quickly and became known as the "French disease ", which raised strict regulations against prostitution again.
Johann Gutenberg was the first to test the transfer of the Bible into printouts in 1430, laying the foundation for printing. By mid-1670s, Rochester John Wilomt had for the first time published a book containing pornography 'Sosom'.
In 1677, Anton Leewenhok studied semen using a microscope. He discovered that semen actually consisted of sperm mixed with fluids. The sperm itself is an extremely small type of reproductive cell that cannot be observed with the naked eye, and semen is the fluid we can see when it is released from the body.
The industrial revolution of 1760 - 1850 was an important turning point in a major change in marriage and sexual relations.
Exactly 150 years after Anton Leeuwenhoek studied sperm, PhD embryo Karl Ernst von Baer discovered the existence of eggs in female bodies.
The concept of 'heterosexual' and 'homosexual ' is not really a scientific way of speaking. In 1886, an unnamed Prussian activist named this name for ' gay' people against the laws of criminal law.
More than 2,000 years after Aristotle asserted that men were the source of reproduction, Dr. Martin Berry found that it needed the contribution of both sexes, and the formation of the race began when it was fertilize with an egg.
In the 1880s, electricity opened a new treatment for insanity in women - described by Hipocrate about 450 BC. Vibrators have been used to treat female patients with anxiety, insomnia, and excessive sexual desire. By 1902, Hamilton Beach filed a patent for this device.
In 1882, Dr. Wilheim Mensinga invented the diaphragm and it quickly became an effective method of preventing unwanted pregnancy.
In 1886, psychiatrist Sigmund Freud conducted his studies in Austria. He then gave the theory of sex - becoming the basis of psychoanalysis throughout the 20th century.
In 1905, while studying the larvae of the beetle, Netttie B.Steven, biologist, discovered that sex is determined by X and Y chromosomes. However, contemporary scientists deny it. Her doctrine.
In 1916 Margaret Sanger opened her first antenatal clinic in Brooklyn, New York, but 10 days later, police closed it. Later, she went to court and was jailed for violating the Comstock law .
In 1919, Frederick Killian laid the foundation for modern condom production. Instead of using animal or fabric leather, he used liquid rubber, which was highly effective.
By the 1920s, scientists were able to keep track of a woman's monthly reproductive cycle . Based on that information, Japanese and Australian scientists have developed a respiratory method that helps prevent pregnancy.
In 1947, Indiana University opened the Institute of Sexual Research, which created the famous sexologist Alfed Kinsey . He published 'Onions for sex in men' , which criticized behavior and abnormalities in men.
German gynecologist Ernest Gräfenberg has published ' the role of urethra in orgasm in women' in the journal International Gender, which indicates the existence of prostate gland in women or G-spot. .
In 1953, Hugh Hefner released the first edition of 'Playboy ' and it quickly became the most popular porn magazine, dispersing 1 million copies in 5 years.
On May 11, 1960, the US Drug Administration certified the first contraceptive pill to be commercialized.
Books like 'Our Body' or ' Sex's Joy' published in 1971 and 1972 reflect the increasing openness of American society to sexual issues. Later, laws restricting abortion and control of reproductive problems in unmarried women were issued.
In 1998, the US Drug Administration approved a law to sell sildenafil citrate - known as Viagra .
In 2000, the Netherlands became the first country to accept same-sex marriage. In 2003, Belgium was the second country to adopt this law.
So far, 19 countries in the world have legalized same-sex marriage - including Argentina, Belgium, Portugal, Brazil, Canada, Denmark, Iceland, Ireland, Luxembourg, the Netherlands, New Zealand, Norway, South Africa, Finland, France, Spain, Sweden, Uruguay, and the United Kingdom (except Northern Ireland). Some states of the United States and Mexico have also recognized same-sex marriages.
