In the late 1980s, philosopher George Walsh gave this six-hour course on Judaism and Christianity. With his characteristic erudition and humor, he covers the history and ideas of these two uber-influential religions. How did the most influential religion of all time spring out of the faith of a weak people on the periphery of the civilized world? What do the two religions still have in common? How – and when – did they diverge? Whatever your views, Walsh knows much that you do not.