1868 मायथायाव मोनसे गोरोबथा गनायथि दोंमोन, नाथाय आंगो आमेरिकान राज्यो न्लेक हाजोफोराव सना अबिसकार खालामनायनि उनाव बे गोरोबयाखौ 1876 मायथायाव सिफायदोंमोन।
A treaty was signed in 1868, but whites broke it in 1876, after gold was discovered on Native American land in the Black Hills.