When were friendship bracelets invented?

Normally, friendship bracelets are just regular bracelets friends buy for each other, from places that they visited or just a store close by. OR they can be handmade, which true friends normally do.

Friendship bracelets originally were made by Indians and are traditionally made for friends in bright colours. An easy craft that is very portable using four to eight strands of embroidery floss. One simple knot, tied consecutively over the other warp threads.