Cinnamon
Native to Sri Lanka, this incredibly fragrant spice plant is recorded in Chinese writings dating back to 2800 BC, and believed to have aphrodisiac powers, useful in treating coughs and sore throat, as well as to preserve and flavour meats. It had travelled as far as ancient Egypt, then later to medieval Europe; and was once so prized that its value was equal to silver. It started a long war between the Dutch, Portuguese and English during the 17th Century AD for control of Sri Lanka (then called Ceylon), which finally ended by the 1800s, after cinnamon was found to be easily grown in other places, including China and Southeast Asia. It’s also one of the core ingredients in Chinese five-spice powder.