140 years ago today, on February 3, 1870, the United States passed the 15th Amendment to the Constitution, giving blacks the vote.

The catch was that the amendment did not protect black voters against discrimination. Some states used poll taxes and literacy tests to keep them away. It wasn’t until the Voting Rights Act of 1965 that blacks were able to freely vote.

What can you do?

Are you biased? Think not? Find out!