Yes, but Counsil of the First Knowledge has been around WAY before, and the existance of Siths were kept from the Jedis. Appearance of Darth Sidious caused an uproar, except to those who were waitting that to happen. (the order of First knowledge). They had trained jedi assassins (Shadows) to hunt and put an end to Fallen Jedis for thousands of years..<br/><br/>