A pixabay free image of trousers
These are clothing that is worn on the lower body by both male and female. Trousers are suspended from the waist downwards and cover each leg separately from the groin downwards to the knee. At the waist they are held up by buckles, a belt or suspenders. Trousers used to be a man's wear till 1919 when the first woman wore it in public. She was prosecuted but the judge set her free.
Pixabay image of jeans
The oldest known trousers are found at the Yanghai cemetery, extracted from mummies in Turpan, Xinjiang, western China, belonging to the Eastern Iranian people of the Tarim Basin; dated to the period between the 13th and the 10th century BC and made of wool, the trousers had straight legs and wide crotches, and were likely made for horseback riding.
https://googleweblight.com/i?u=https://en.m.wikipedia.org/wiki/Trousers&hl=sw-KE
A pixabay image of a denim
Trousers are known by several names. Pants is the name often used by Americans. However it is often used to mean underwear all over the world. Panties are used for lady's innerwear to differentiate it from the men's. Breeçhes, trews, jeans and breeks are some of the names.
Beautiful women wear
So women started to wear trousers in public in the 20th century. Before they used to wear their husband's trousers as workclothes when their men were in the army. In the late 20th century, women began wearing trousers in public. Mostly they were used for horse ridinh and as workclothes.