Zeno's original name was Tarasis, and more accurately Tarasikodissa in his native Isaurian language was Eastern Roman emperor from 474 to 475 and again from 476 to 491. Domestic revolts and religious dissension plagued his reign, which nevertheless succeeded to some extent in foreign issues., Zeno is famous for his Henotikon, or "Act of Union", issued in 482 to mediate between Chalcedonian and Miaphysite views about the nature of Christ. Suppressing the Samaritan revolt (484)