The aromatic resin extracted from the Boswellia tree known as frankincense or frankincense is one of the oldest fragrant materials known to mankind. Its aromatic properties have been exploited since the end of the Stone Age, around 15 thousand years ago. It was precious as gold by the Egyptians, Greeks, Romans and Arabs. For the name of the perfume itself (per fumum, through the smoke), we have to thank the incense. The price of good natural incense resins has never been cheap, even in modern times. For most of the history of incense use, its use was limited to sacred purposes to be burnt in temples, which is why many of us associate the smell of incense with religion.