Was it Bodhidharma (the Indians and Zen Buddhists think so) or Emperor Shen Nung (all of China thinks so) who discovered tea? The emperor found that it kept his soldiers alert, while Bodhidharma, marathon meditator that he was, discovered that it helped keep him awake in meditation (in his commitment to stay awake, Bodhidharma severed his eyelids, from which sprang forth the first tea plant). You decide whose uses are most noble.
So who was it? It'll depend on where you are when you ask—in other words, there is no answer—but there are good and reliable tips for everything from choosing the right tea to brewing a cup to cleaning your teapot.