For thousands of years, tea has been the most popular drink in China. The earliest black tea in the world was invented by a tea farmer in Fujian, China. Compared with green tea, black tea boasts the stronger and more lasting fragrance more often than not. The best-quality black tea in China is Qimen black tea that is produced in Qimen, Anhui. Also known as Qigong, it was produced in the late 19th century. Around the 17th century, black tea was introduced to Britain and the habit of drinking tea began to come into being in this country afterwards. People consume more black tea than green tea in Britain, developing the unique black tea culture . This kind of drink can help promote digestion, enhance appetite(胃口，食欲）and strengthen the heart.