If one were to study green tea in any detail, rather than finding a concise history of discovery and a subsequent spread across the continents, green tea's history is much more convoluted and many different versions and legends abound regarding the discovery of tea.
What can be verified, however, is that tea was discovered in its greenest form over five thousand years ago. Some versions of history have a flower falling into a tea cup while another has a man eating a leaf and realizing how delicious it would be steeped in water. Regardless of the facts (or legends) tea was discovered in some way and went on to change the world