The Buddha was a man named Siddhartha Guatama, born of the warrior class in India in about 500 B.C.E. Siddhartha attained enlightenment after abandoning his privileged life and searching for truth about six years.
Buddhism's Four Noble Truths are that life is full of suffering, suffering is due to desires and attatchments, suffering can be eliminated by eliminating desires and attatchments, and the way to do this is by following the Eightfold Path.
The Eightfold Path includes right understanding, right thought, right speech, right action, right livelihood, right effort, right mindfulness, and right concentration.
Buddhism spread from India to China, where it developed into many sects, eventually spreading to Japan, Korea, Vietnam, and the U.S.
A Zen teacher can't hand you enlightenment but can point the way.