It’s a small piece of obsidian, just over 5 centimeters long, likely found on a hard-scrabble piece of ranchland in the Texas panhandle. But when SMU anthropo
Prof. Dr. Santi Pailoplee, Department of Geology, Faculty of Science, Chulalongkorn University, in collaboration with the Faculty of Archaeology, Silpakorn Univ
Guns, Germs, and Steel (1997) is Jared Diamond s Pulitzer Prize-winning effort to explain the contrasting histories of Native Americans, Africans and aboriginal