Troll, ако знаех, че някой ще се заблуди, че съм се заблудил, щях да напиша СЪВРЕМЕННИЯ презерватив.
+ това говорех за предпазване от STD, не от забременяване. Всички кондоми правени от разни черва, не предпазват от STD, да не говорим, че дори и те се обработват химически. Предполагам не си мислиш, че след като заколя агнето, овчаря слиза от планината и доставя червата директно по аптеките.
http://en.wikipedia.org/wiki/Condom
Before the 19th century
Whether condoms were used in ancient civilizations is debated by archaeologists and historians.[1]:11 In ancient Egypt, Greece, and Rome, pregnancy prevention was generally seen as a woman's responsibility, and the only well documented contraception methods were female-controlled devices.[1]:17,23 In Asia before the fifteenth century, some use of glans condoms (devices covering only the head of the penis) is recorded. Condoms seem to have been used for contraception, and to have been known only by members of the upper classes. In China, glans condoms may have been made of oiled silk paper, or of lamb intestines. In Japan, they were made of tortoise shell or animal horn.[1]:60-1
In 16th century Italy, Gabriele Falloppio wrote a treatise on syphilis.[1]:51,54-5 The earliest documented strain of syphilis, first appearing in a 1490s outbreak, caused severe symptoms and often death within a few months of contracting the disease.[2][3] Falloppio's treatise is the earliest uncontested description of condom use: it describes linen sheaths soaked in a chemical solution and allowed to dry before use. The cloths he described were sized to cover the glans of the penis, and were held on with a ribbon.
http://contraception.about.com/od/malec ... mbskin.htm
Small pores (or holes) in lambskin condoms make them ineffective in protecting against sexually transmitted diseases since the viruses that cause STDs can enter through these pores. Natural condoms DO provide pregnancy protection since the pores are too small for sperm to pass through.