Simplify the following text for a Grade 8 native English-speaking person.
Original: Helen Hayes Brown ( October 10 , 1900 -- March 17 , 1993 ) was an American actress whose career spanned almost 70 years .
Simplified: Helen Hayes Brown ( October 10 , 1900 -- March 17 , 1993 ) was an American actress , whose career lasted for almost 70 years .