Jacob Rodrigues Periera (1715-1780) was the inventor of dactylology, a method for teaching deaf-mutes to communicate. A crypto-Jew from Portugal, his first student was his sister. His methodology received phenomenal acclaim, he received honors from the King of France and was named to both the Royal Society of London. This video is part of This Week in Jewish History videos by Dr. Henry Abramson, available at http://www.jewishhistorylectures.org.

To view the Prezi used in this video, please click here.