Herbs are definitely multi-purpose plants.
Traditional uses include culinary, medicinal*, fragrance, and dye. We have written records of medicinal uses of herbs in 5000 B.C.E. in the Middle East, and archaeological evidence of medicinal use back to 8,000 years ago in China. One has to wonder: who was the first brave person to test some of the more potent herbs?
Herbs are multi-tasking plants. They have been called weedy. But most are beautiful, especially if you consider that every herb is a multi-purpose powerhouse. They offer food to pollinators. Many herbs accumulate minerals from deeper soils and bring essential nutrients to the soil surface to be used by other plants. They act as aromatic deterrents to deer and rabbits who are looking for their next meal. But best of all, from the human perspective, so many make our food taste good and support our health.