Sirius astrological symbol was listed by Heinrich Cornelius Agrippa. Many cultures have historically attached special significance to Sirius, particularly in relation to dogs. It is often colloquially called the "Dog Star" as the brightest star of Canis Major, the "Great Dog" constellation. It was classically depicted as Orion's dog. The Ancient Greeks thought that Sirius's emanations could affect dogs adversely, making them behave abnormally during the "dog days," the hottest days of the summer. The Romans knew these days as "dies caniculares", and the star Sirius was called Canicula, "little dog." The excessive panting of dogs in hot weather was thought
Ancient of Days to portray him as he was incarnate. This iconography emerged in the 6th century, mostly in the Eastern Empire with elderly images, although usually not properly or specifically identified as "the Ancient of Days." The first images of the Ancient of Days, so named with an inscription, were developed by iconographers in different manuscripts, the earliest of which are dated to the 11th century. The images in these manuscripts included the inscription "Jesus Christ, Ancient of Days," confirming that this was a way to identify Christ as pre-eternal with the God the Father. Indeed, later, it was declared by the