We can’t understand the past without understanding when things happened, because if we can’t place them in some sort of chronological order, we can’t understand the relationship between them. But how do we know when things happened in the distant past? Professor Sturt Manning of Cornell University is an expert on chronology, using tree-rings, radiocarbon, and historical sources to date events and archaeological sites from many thousands of years ago. Patrick's book is now available! Get The Verge: Reformation, Renaissance, and Forty Years that Shook the World in hardcopy, ebook, or audiobook (read by Patrick) here.Listen to new episodes 1 week early, to exclusive seasons 1 and 2, and to all episodes ad free with Wondery+. Join Wondery+ for exclusives, binges, early access, and ad free listening. Available in the Wondery App https://wondery.app.link/tidesofhistory.Better Help- Get 10% off your first month at betterhelp.com/tides.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.