Stephen Hawking was one of the most brilliant theoretical physicists in history. Born on January 8, 1942, in Oxford, England, he showed an early interest in science and mathematics. Despite being diagnosed with amyotrophic lateral sclerosis (ALS) at the age of 21, a disease that progressively paralyzed him, he continued his groundbreaking work in cosmology and theoretical physics.

Hawking's contributions to science include his theory of black holes emitting radiation, now known as Hawking Radiation. He also wrote several popular science books, including "A Brief History of Time," which became an international bestseller and brought complex scientific concepts to a wide audience.

Throughout his life, Hawking remained active in research and public speaking, inspiring millions around the world with his determination and intellect. His work continues to influence scientists and thinkers across various fields today.

This introduction highlights the key aspects of Stephen Hawking's life and achievements while maintaining simplicity and clarity for easy understanding by readers unfamiliar with his work.