The thong, like its probable predecessor the loincloth, is believed to be one of the earliest forms of human clothing and is also thought to have been worn mostly or exclusively by men. It is thought the thong was probably originally developed to protect, support, or hide the male genitals. The loincloth is probably the earliest form of clothing used by mankind, having originated in the warmer climates of sub-Saharan Africa where clothing was first worn nearly 75,000 years ago. Many tribal peoples, such as some of the Khoisan people of southern Africa, wore thongs for many centuries. Much like the Japanese fundoshi, these early garments were made with the male genitalia in mind.
According to some fashion historians, the first public appearance of the thong in the United States was at the 1939 New York World's Fair. This resulted from Fiorello LaGuardia, the Mayor of New York City, ordering the city's nude dancers to cover themselves. Jacques Heim's and Louis Réard's original bikini from 1946 (that introduced the term bikini) had a culotte with a thong back.
Avoid wearing thongs every day. For the same reason that you should change your thong on a regular basis, you should avoid wearing your thong every day. Bacteria can easily travel up the fabric of the thong, which means wearing one every day can make you more prone to infections. Try wearing thongs only during the day or times when they are a needed fashion piece. Wear full-coverage panties at night, when you work out, and when you are wearing heavy jeans or other bottoms which won’t show your panty line.