u know how the jeans was discovered? where it was used to wear usually?

We all most of the guys here are lover of jeans. If we dont wear jeans for a couple of days we feel like as if we are out of the trend!! Whether we consider this fact or not but this is the fact and reality that we cant go without jeans.Umust know following facts ab the jean, dear!

1]jeans were basically used by workers who used to travel in the ships for many months.They prefer this cloth bcoz of its rogh and toughness.
2] It doesnt look ugly even if too dirty and washed

3]The basic colour of jeans cloth is grey!!

4] And the most used colour is blue, its the colour of jeans by default!!

Do u any such facts ab the jeans, its manufacturing, its recycling? Plz let me know if u have any such more facts and ideas. Do u know how to make the jeans faded and give it a special effects??