Historic Moments on Instagram: "William F. “Buffalo Bill” Cody and Oglala Lakota Chief Iron Tail shared a profound friendship that spanned nearly two decades. Despite coming from opposing sides of the Indian Wars, they became “best friends” while touring with the Wild West show. Since they spoke different languages, they famously communicated through Plains Indian Sign Language. A rare 1898 silent film captures the pair sitting together, engaged in a fluid, expressive conversation using these ha