They had scores of sacred oracles, such as those of Delphi, Delos, and Dodona, where they would go to inquire of their gods with regard to political or military developments as well as such private affairs as travel, marriage, and children.
როგორც ერთ - ერთმა პროფესორმა აღნიშნა, დღეს „ძალიან მომრავლდა ორგანიზაციები, რომლებიც მომავალს იკვლევენ“.