The Tablets That Paved the Way for the iPad — wired.com

~1300 BCE: The Ten Commandments The historical tablets of yore were hewn of rock or precious stone, and were generally rectangular in shape, with sharp corners. Perhaps most notably among these non-electronic slates were the Ten Commandments sent to Moses in the Book of Exodus. Paramount 1888: Gray's Tablet Patent In the more modern era, electrical engineer Elisha Gray filed a patent in 1888 for an electronic stylus-type device that would capture handwriting. Piggybacking on the development of the telephone, the device would relay handwritten messages using telegraph technology, like a precursor to iMessage.

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