21 May Oregon v. Mitchell
Literacy requirements are banned for five years by the 1970 renewal of the Voting Rights Act. At the time, eighteen states still have a literacy requirement in place. In Oregon v. Mitchell, the Court upholds the ban on literacy tests, which is made permanent in 1975. Judge Hugo Black, writing the court’s opinion, cited the “long history of the discriminatory use of literacy tests to disenfranchise voters on account of their race” as the reason for their decision.