In ancient times, women did not wear underwear. In the past, women wore two pieces of cloth in their skirts, not on their trouser legs. From the Middle Ages, European women wore whale bone skirts instead of underwear.

Women first wore underwear because of hygiene and warmth. Because women's reproductive tract is easily attacked by bacteria, wearing underwear is equivalent to adding a protective barrier to women's reproductive tract. At the same time, women are more afraid of catching cold, and underwear also has the function of keeping warm.

Later, women's underwear gradually had the function of beauty and attracting men, and the design and workmanship were artistic. From the Queen's underpants to the later briefs, to the back high-waisted underwear, seamless underwear, thong, and then to the taste underwear, the flirting color is getting stronger and stronger.

Of course, there are also some women who still don't wear underwear in their skirts, some because they want to be cool in summer, and some for excitement.

I hope to get extra points.