When Lincoln says, "The world will little note, nor long remember what we say here, but it can never forget what they
did here," what is his purpose for using brevity?

to convey that his speech is not as important as the action of the people who fought for their country

Explanation:

was a long, primarily nonviolent series of events to bring full civil rights and equality under the law to all americans. the era has had a lasting impact on united states society, in its tactics, the increased social and legal acceptance of civil rights, and in its exposure of the prevalence and cost of racism. in the south violence and fraud in southern elections from 1868 to 1876, which had reduced black voter turnout and enabled southern white democrats to regain power in state legislatures across the south