One's own genealogy, for example. What does it matter who begat whom in one's line? Most of us will discover the names and dates of insignificant people who have left nothing behind but their names
and dates.
Or is it just a philosopher's prejudice to be concerned more with timeless universals than with temporal particulars? To thrill to the Thoreauvian admonition, "Read not The Times, read the eternities"?