In 1992, the food product health laws were revised, making it obligatory to label the ingredients of the product. Since then, additives such as polysaccharides thickener have been listed on the ingredients label on foods such as ice cream. A polysaccharide thickener is a sugar used for thickening foods and is made from seaweed and plants.
Jeans have become part of American life since then.
I haven't heard a peep from him since then.
We have been good friends ever since.
I've been a nervous wreck since then.
I crashed my car; from then on, I was afraid to drive.