Native American tribes are grouped by the language they speak. For example, the Apaches are a group of several tribes that all speak the same language.
Key philosophies<span> in the Declaration of Independence were based upon ideas first expressed by european philosophers</span>
The battle of Gettysburg is considered the turning point of the war and Lee's greatest defeat. It happened in July 1863. Although there were many battles that has been considered as a turning point during the war. Other examples are the Victory at Bull Run in July 1861 and Invasion of Kentucky in September 1861.
D) issues important to the population that people want addressed by the government :)