Query: what is it called when you believe in greek gods

Relevant passages:
Hellenism (religion) <=SEP=> Hellenism (Greek: Ἑλληνισμός), the Hellenic ethnic religion (Ἑλληνικὴ ἐθνική θρησκεία), also commonly known as Hellenismos, Hellenic Polytheism, Dodekatheism (Δωδεκαθεϊσμός), or Olympianism (Ὀλυμπιανισμός), refers to various religious movements that revive or reconstruct ancient Greek religious practices, publicly, emerging since the 1990s.

Hellenism (religion) <=SEP=> There are no official naming practices for this religion, but there does seem to be an informal naming convention, based on academically accepted descriptive definitions, adhered to by groups and most individual believers. Hellenism is the most common term, used chiefly as an identifier for the modern polytheistic religion by its adherents today but it can also refer to the ancient Greek religion and culture.[2] The term originally stems from a systematization and revival of Greek religion done by the Roman Emperor Julian. Julian used the term to describe traditional religion of the Greeks[3] (the word can also have other unrelated meanings in modern Greek). Additionally, subgroups use a variety of names to distinguish branches focusing on specific schools of thought, or modern traditions focusing on the public practices of individual city-states. These subgroups can be described as denominations. Hellenic religion, and Hellenic polytheism can be said to be used interchangeably to refer to the religion, and are synonymous. The phrase Hellenic Polytheistic Reconstructionism refers more to the methodology used by some practitioners to revive a version of the religion, than the religion itself. Not all Hellenic Polytheists are reconstructionists. Dodekatheism and Olympianism are other names, though less commonly used.

Hellenism (religion) <=SEP=> In the United States, the Hellenic polytheist organization Hellenion[23] also identifies its practices as "Hellenic Pagan Reconstructionism" and emphasizes historical accuracy in its mission statement.[24] The group uses the term "Hellenismos" (Ἑλληνισμός, Hellēnismós) to describe the religion. Hellenion does not provide official membership numbers to the public, but an unofficial estimate of 43 members can be determined for 2007,[25] though this number can only give the roughest approximation, as Hellenion offers hardship waivers to those who cannot afford the typical membership fees.[26] In early 2010, the organization reported 1 demos (fully chartered local congregation) and 6 proto-demoi (start-up congregations not fully chartered with less than 3 members) established, which offer rituals and other events for members and frequently for the public as well.[27] Two of the six proto-demoi cannot be independently verified to exist. Hellenion offers legal clergy training,[28] basic adult religious education classes,[29] and other educational/training courses for its members.[30]

Hellenism (religion) <=SEP=> Hellenic polytheists worship the ancient Greek Gods, including the Olympians, nature divinities, underworld deities (chthonic gods) and heroes. Both physical and spiritual ancestors are honored. It is primarily a devotional or votive religion, based on the exchange of gifts (offerings) for the gods' blessings.[36] The ethical convictions of modern Hellenic polytheists are often inspired by ancient Greek virtues such as reciprocity, hospitality, self-control and moderation. The Delphic maxims, Tenets of Solon, the Golden Verses of Pythagoras, or even Aristotle's Ethics each function as complete moral codes that a Hellenic Polytheist may observe. Key to most ethical systems is the idea of kharis (or "charis", grace), to establish reciprocity between humanity and the gods, between individuals, and among community members.[37][38] Another key value in Hellenic Polytheism is eusebeia, often translated as piety. This implies a commitment to the worship of the Hellenic gods and action to back this up.