"Letter from Birmingham Jail" is a seminal document in Black history written by Dr. Martin Luther King Jr. on April 16, 1963. King penned the letter while imprisoned for participating in nonviolent protests against racial segregation in Birmingham, Alabama.

In the letter, King responds to a group of white clergymen who had criticized his tactics and called for patience in pursuing civil rights. King eloquently defends the use of nonviolent direct action and civil disobedience to bring attention to the injustices faced by African Americans. He emphasizes the moral imperative to fight against segregation and discrimination, arguing that waiting for gradual change only perpetuates injustice.

"Letter from Birmingham Jail" is not only a powerful defense of the civil rights movement but also a call to action for individuals to stand up against oppression and work towards a more just and equitable society. The letter continues to be studied and celebrated for its eloquence, moral clarity, and timeless message of justice and equality.