Well, people have been making and using condoms for hundreds of years.  There’s actually archaeological evidence of a 4,000-year-old banana-leaf condom, found in Mexico.  The people living there likely used it for contraception.  Rubber was discovered in the 1740s, and it was used for condoms right away.  Condoms made out of other materials were still used for a long time, though, such as sheep gut, which was often called sheepskin.  Eventually though, only condoms made out of latex rubber would become common, and be what we think of when we think of a “condom”.
assitant
Animal intestines were used to make various sorts of things in ancient times, but I don’t know of any special use for them in the field of sex.  Are you thinking of different sources of animal intestines, like for example the guts that come out of the digestive system?
assistant
Did they use to use animal intestines for condoms before the advent of rubber?
user