Wool was not invented; it is the hair of some mammals (most often sheep) which developed during millions of years.
The wool combing machine was invented in 1789. Edward Cartwright who invented the wool combing machine.
wool is a insulator
What do you mean by this? Who first spun wool or who first put it to use?
No, actually, animals invented wool, because they grow it as fleece.
Steel wool was invented in the early 20th century, specifically in the 1890s by Elwood Haynes, an American inventor. He developed the concept of using metal fibers for cleaning and polishing purposes which led to the creation of steel wool.
Mother Nature invented wool as a fleece to keep some animals warm: the fleece grows from their skin.
A wool weaver is one who weaves with wool, fabricating cloth from wool yarn.
a wool blend means that other than wool, there are one or more other fibres/fabrics in with the wool.
Some line dances were invented in the 1950's. But, most were invented in the 1970's.
wool
When purchasing a wool coat one should look out for the source of the wool. If one is environmentally conscious then one may, for example, wish to buy a coat made partly with recycled wool.
A bale of wool