Why would there be different stories of the event if no one is just plain lying

Although a number of things brought about world war one there was one even that push to europe over the edge. what was that event?

In approximately 1500, most american indians in the northeast and the southeast lived and made decisions in

Which action by the us war department angered chief red cloud to the point that he refused to sign the treaty of fort laramie ? a) the killing of buffalo by the united states troops b) the appointment of troops to the powder river basin c) the burning of parts of the powder river basin d) the murder of chief red cloud’s wife