And the present worldwide morality is defined by Christian ideals. A universal brotherhood of mankind and individual rights because it is "the right thing to do".<quoted text>
In this age of information sharing , morality is well defined by a worldwide set of definitions.
Long ago this was not possible , so morality was regional, or even dictated locally. In the end morality is defined by the consensus within a group. What the accepted terms of morality are, depends on the group defining them. So absolute morality would be what was decided by the largest set of people. But there could never be a true absolute morality, not as long as two sets exist.
The Romans weren't too good at that until they got religion. You won't find such advanced much in any other religion, including those Eastern ones.