What is the difference between black and oolong teas, and white and green teas?

Black Teas:- Black tea is one of the most popular form of tea. It is also the most oxidised and possesses the strongest flavour among all types of tea. Tracing its origins to China in the mid-17th century, it was the first kind of tea to be introduced in Europe and the Middle East. Under the patronage of British and Scottish entrepreneurs, black tea production spread to other parts of the world like India, Sri Lanka, Indonesia, Kenya, etc. The discovery of the Assam black tea variety ( Camellia sinensis assamica ) in 1823 marked a milestone in black tea production. Subsequently, the English, who had colonised India by then, began tea farming in Darjeeling, West Bengal. Buy Black Teas Online Oolong Teas:- Oolong tea is among the lesser-known types of tea. It is a semi-oxidised tea, tracing its origin to China. Oolong tea derives its name from 'wu long' or black dragon. According to a popular legend, oolong tea was discovered by a tea grower, Wu Long. One fine day, he for...