Cotton can be any of various shrubby plans of the genus Gossypium. It has showy flowers and is grown for the soft white downy fibers surrounding oil-rich seeds. The fiber of these plants is used in making textiles and other products. The soft staple fiber grows in a boll and is almost pure cellulose. Thread or cloth is manufactured from the fiber of these plants and then used to make a soft, breathable fabric. Since the prehistoric times, men have been using cotton for fabric. In Mexico and valleys in Pakistan they have found fractions that date back to 5000 BCE. In Mexico you can find the greatest diversity of wild cotton species, followed by Africa and Australia. The plant originally grew in the subtropical and tropical regions of both South- and North- America, India and Africa. The invention of cotton gin was done, because it lowered the costs of the production which led to its widespread use.