Ancient Egyptians believed that unbroken circular rings insured eternal love and devotion. Rings were placed on the third finger of the left hand because it was thought that the vein in that finger ran directly to the heart.
Before the introduction by the Romans of rings crafted from iron or gold, rings were made of braided grass or other natural materials. Consequently, these rings had to be replaced yearly.
In Colonial America, rings were thought of as frivolous. If a bride got a ring at all, it was a thimble with the top cut off.