One intriguing element of Obama's family history that resonated with Caroline was a long-buried story that was brought to her attention last summer. It drove home for her how history replays itself, how two generations of two families—separated by distance, culture and wealth—can intersect in strange and wonderful ways, and how people have no idea that their good deeds may come back to them someday.Intriguing hardly describes what comes next. It is unbelievable. I got goosebumps this morning reading out loud to a friend what came next. Find out for yourself and click on the link above.