John Celivergos Zachos field of work oration
John Celivergos Zachos (Greek: Ιωάννης Καλίβεργος Ζάχος; December 20, 1820 – March 20, 1898) was a Greek-American physician, literary scholar, elocutionist, author, lecturer, inventor, and educational pioneer.  He was an early proponent of equal education rights for African Americans and women.  He advocated and expanded the Oratory systems of François Delsarte and James Rush.
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