Why is there no mention in recorded history of the methods used to construct the many pyramids, Stonehenge, Easter Island, and other monumental stone structures here on Earth?

The Council of the Agents of the Light are present and also the Guardians of the Ages who witnessed these events as they happened and what subsequently came to pass. Many of those present can answer questions of this nature, but three agents, Crius, Hyperion, and the Ourea, come forward.