tea is an evergreen plant. He was accidentally discovered by Emperor Shen Nung of China. Whilst on a trip he boiled a pot of water when the tea leaf fell into it British sailors, returning from the Far East, brought tea bags home as gifts for their relatives the first tea advertisement appeared in a newspaper called Mercurius Politicus in 1660 advertising in the newspaper said that tea could cure colds and other poor illnesses were willing to pay as much as a third of the weekly salary for tea was the most popular drink in the Britian for three hundred years the average Briton drinks thirty cups of tea a week. In fact, British imports of almost twenty-five percent of the total tea is exported to the world.