How did Alexander Graham Bell help Helen Keller?

Alexander Graham Bell played a pivotal role in Helen Keller's education and communication development. As an advocate for the deaf and hard of hearing, he introduced Keller to her teacher, Anne Sullivan, who helped her learn to communicate through sign language. Bell's support and guidance were instrumental in Keller's journey to become an accomplished author and activist, despite her disabilities. His commitment to improving the lives of individuals with hearing impairments significantly impacted Keller's life and achievements.