Final answer:
The arrival of Anne Sullivan on the third of March, 1887, was a pivotal moment in Helen Keller's life, leading to transformative breakthroughs in her education and communication abilities.
Explanation:
The third of March, 1887 was a significant day in Helen Keller's life because it marked the arrival of her teacher, Anne Sullivan. At that time, Keller was just under seven years old and had been deaf, blind, and unable to speak since infancy. Sullivan's arrival paved the way for Keller's education and communication breakthroughs, allowing her to overcome significant challenges and become an influential figure in advocating for women's rights, disability rights, and social justice.
Learn more about Helen Keller and the impact of Anne Sullivan in her life here:
https://brainly.com/question/37339220
