<h2>According to the year that each event happened:</h2>
Treaty of Medicine Lodge moves Indians to a region now known as Oklahoma in 1867. This name is about three treaties between the Federal government and Southern Plains Tribes.
Treaty of Laramie orders that Indians move out of the path of white settlement in 1868, was an agreement between the United Stated and the Oglala, Miniconjou and Brulé.
Indians are forced out of Black Hills region where gold is discovered in 1874.
The Dawes Act terminates tribal ownership of most reservation lands in 1887. This act authorised the President to divide Tribes, transferring traditional land into private properties for the government.
The main challenge was that no one knew where exactly the Titanic had sunk. Although the crew had communicated the ship's location after the collision, it had probably drifted as it fell through the water.
