The Coolest Thing Aliens Could Do Is Show Humans Our History

I think humans would be most awed by video like recordings of a lot of our past from the 200,000 years of homo sapiens, of course with a lot of zoom-ins on common interests. Like religious leaders' lives and famous battles.

Tech to provide peace and prosperity would be more tangible, but I think humans will not be that interested in alien civilizations. And take for granted the accomodations. And want to find meaning in their lives from knowing the great mysteries.