Healing with medicinal plants is woven into the very fabric of human history.  Long before the term aromatherapy  was ever coined in the 20 th  century, our ancestors were observing, experimenting with and learning from the botanical world around them. Archaeological evidence suggests that the use of plants for medicinal and ritual purposes dates back to the Lower and Middle Palaeolithic periods (approximately 2.6 million – 30,000 BC).  One of the most compelling discoveries