Conflict broke out when the United States failed to honor its 1868 treaty promising to assign prairie lands to the Bannock Indians. Pushed west by white incursion and suffering from starvation, the Bannock and Northern Shoshone tribes raided white settlements for food. The Army put down the raids, and the Bannock surrendered and were returned to their reservation near Fort Hall, Idaho.
In Philadelphia, President Ulysses S. Grant opened the Centennial Exhibition of 1876, the first World’s Fair held in the United States. The event hosted various exhibits of nature and technology, including Alexander Graham Bell’s telephone, and attracted almost nine million visitors in six months.