Blind and deaf from the age of 2, Helen Keller was placed in the care of Anne Sullivan, who acted as her teacher and companion for 49 years. Under Sullivan's tutelage(保護、監督、指導), Keller made rapid progress, eventually graduating from Radcliffe College with honors. She later became a world-famous lecturer and advocate(擁護者、支持者)for people with disabilities. The Miracle Worker, a play based on Keller's autobiography, chronicles(記録にとどめる、年代記に載せる)her remarkable educational journey.