The series is called The New History of the Human Race by Answers in Genesis. It features the work of Dr. Nathaniel Jeanson based on his book Traced. In a nutshell he's traced people groups throughout human history based on DNA. I've had his book on my Wishlist since it came out but just discovered this video series last night. I've only watched the first 2 and so far no bombshells but instead falls along the lines of things I've reasoned out for myself. I did find this chart very interesting, the huge and unprecedented increase in human population after thousands of years of holding steady. I knew the population increased, but I did not know it was such a sudden and marked increase. https://www.youtube.com/playlist?list=PL1v9pqs4w1mwrGlCET76Rs99Fx0EfJXE4