Means that it rests on claims of real-world events.
As opposed to Buddhism, Taoism, Shinto, Jainism, etc.
As opposed to Buddhism, Taoism, Shinto, Jainism, etc.
There are ways of interpreting and practicing Buddhism in which this is less important (eg modernist, psychological, western), but that's also true of Christianity (eg the Jefferson Bible, Unitarians, etc).