What century is 1451 in?

15th Century

Explanation:

today is 21st minus add one to the 1400 get 15 you get 15th century/14th century/16th century

#1 im pretty sure its a.

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