How did sylvia mendez expand civil rights?

as a child, she testified in a court case that helped end school segregation

Sylvia Mendez helped expand civil rights because As a child, she testified in a court case that helped end school segregation.

Explanation:

Of Puerto Rican-Mexican heritage, at the age of eight she testified in the Mendez v. Westminster case in 1946, which was a major landmark in the desegregation process. She was asked to prove that she could speak and understand English language to prove that she did not have to be sent to a segregated "Mexican" school.

it met the katy line in vinita.

iv. it traveled through cherokee and quapaw tribal lands.