“If history is a story we’re telling one another,” writes author Tamim Ansary, “what is its plot?” That’s the question Ansary takes on with his ambitious new book, “The Invention of Yesterday: A 50,000 Year History of Human Culture, Conflict, and Connection.” Ansary sees history as narratives we tell to make sense of our world and he finds surprising connections, and similar historical narratives, across disparate cultures as we move toward an even more intertwined future.