Percy Bysshe Shelley was an English poet born on August 4, 1792, known for his influential works in the Romantic literary movement. He is celebrated for his lyrical poetry and themes of idealism, nature, and social justice. Some of his most famous poems include "Ode to the West Wind" and "To a Skylark." Shelley was also a political activist and a supporter of various social causes, including the abolition of slavery and women's rights. He died at a young age in a boating accident on July 8, 1822, but his writings continue to inspire readers and writers around the world.