Which of these measures was specifically designed to limit the voting rights of the black freedmen? the Fifteenth Amendment

grandfather clauses

Jim Crow laws

the removal of federal troops from the South

the grandfather clause

Explanation:

A grandfather clause is a provision that allows people or entities to follow old rules that once governed their activity instead of newly implemented ones, often for a limited time. The term originated during the U.S. Civil War era and referred to statutes enacted in the South to suppress African American voting.

the answer is migration

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