Maya Angelou, born on April 4, 1928, is an African American poet and civil rights activist known for her notable work 'I Know Why the Caged Bird Sings,' which explores themes of freedom and the oppression faced by African Americans. The poem uses rich imagery and poetic devices such as metaphor and symbolism to illustrate the contrast between the free and caged bird, representing the struggle against racism and inequality. Each stanza reinforces the longing for freedom and the emotional toll of confinement, both literal and metaphorical.