St Matthew tells us that the first people to give presents at Christmas time were 'wise men from the east' who came following a star in search of a new-born king of the Jews. On finally locating the baby Jesus in Bethlehem, they fell down and worshipped him, honouring him with gifts of gold, frankincense and myrrh.
Astronomers have since devoted a great deal of time and effort trying to work out exactly what celestial phenomenon the wise men were following, coming up with some truly wild and wonderful theories in the process.
Financial analysts, however, have spent rather less time trying to calculate the contemporary market value of the wise men's presents.
So let's give it a go.
Gold, frankincense and myrrh were certainly highly prized 2,000 years ago; they were undoubtedly the luxury goods of the age. Gold, of course, is still familiar to us today; frankincense and myrrh perhaps less so.
Frankincense is the fragrant resin of a scraggy shrub that grows high on the inaccessible and inhospitable mountains that range the border of the Omani province of Dhofar and the notoriously-lawless Yemeni province of Hadramaut.