09/18/2012 01:41 pm ET Updated Oct 16, 2012

Sign Language That African Americans Use Is Different From That Of Whites: Study

Carolyn McCaskill remembers exactly when she discovered that she couldn’t understand white people. It was 1968, she was 15 years old, and she and nine other deaf black students had just enrolled in an integrated school for the deaf in Talledega, Ala.

When the teacher got up to address the class, McCaskill was lost.

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