Modern paganism in the context of "Altar"

Paganism (from Latin paganus 'rural, rustic', later 'civilian') is a term first used in the fourth century by early Christians for people in the Roman Empire who practiced polytheism, or ethnic religions other than Christianity, Judaism, and Samaritanism. In the time of the Roman Empire, individuals fell into the pagan class either because they were increasingly rural and provincial relative to the Christian population, or because they were not milites Christi (soldiers of Christ). Alternative terms used in Christian texts were hellene, gentile, and heathen. Ritual sacrifice was an integral part of ancient Greco-Roman religion and was regarded as an indication of whether a person was pagan or Christian. Paganism has broadly connoted the "religion of the peasantry".

During and after the Middle Ages, the term paganism was applied to any non-Christian religion, and the term presumed a belief in false gods. The origin of the application of the term "pagan" to polytheism is debated. In the 19th century, paganism was adopted as a self-descriptor by members of various artistic groups inspired by the ancient world. In the 20th century, it came to be applied as a self-descriptor by practitioners of modern paganism, modern pagan movements and polytheistic reconstructionists. Modern pagan traditions often incorporate beliefs or practices, such as nature worship, that are different from those of the largest world religions.

Hellenism (Greek: Ἑλληνισμός) in a religious context refers to the modern pluralistic religion practiced in Greece and around the world by several communities derived from the beliefs, mythology, and rituals from antiquity through and up to today. It is a system of thought and spirituality with a shared culture and values, and common ritualistic, linguistic, and literary tradition. More broadly, Hellenism centers itself on the worship of Hellenic deities, namely the twelve Olympians.

Greeks who identify their religion and way of life with Hellenism are commonly referred to as Εθνικοί Έλληνες (Ethnic Hellenes). Non-Greek devotees of the Greek gods who embody Hellenic ideals commonly referred to Hellenists. Hellenism is sometimes referred to as a Pagan religion; this classification is also at times used as a pejorative for Greeks. Olympianismos (Olympianism) and Neopaganismos (Neopaganism) are used by the Greek Orthodox Church in a derogatory manner, while the term Dodekatheismos (religion of twelve gods) is used by both Christian critics and some polytheists.

Diana is a goddess in Roman religion, primarily considered a patroness of the countryside and nature, hunters, wildlife, childbirth, crossroads, the night, and the Moon. She is equated with the Greek goddess Artemis, and absorbed much of Artemis' mythology early in Roman history, including a birth on the island of Delos to parents Jupiter and Latona, and a twin brother, Apollo, though she had an independent origin in Italy.

Diana is revered in modern neopagan religions including Roman neopaganism, Stregheria, and Wicca. In the ancient, medieval, and modern periods, Diana has been considered a triple deity, merged with a goddess of the moon (Luna/Selene) and the underworld (usually Hecate).

Polytheistic reconstructionism (or simply reconstructionism) is an approach to modern paganism first emerging in the late 1960s to early 1970s, which gathered momentum starting in the 1990s. Reconstructionism attempts to re-establish genuine polytheistic religions in the modern world through a rediscovery of the rituals, practices and contextual worldviews of pre-Christian pagan religions. This method stands in contrast with other neopagan syncretic movements like Wicca, and ecstatic/esoteric movements like Germanic mysticism or Theosophy.

While the emphasis on historical accuracy may imply historical reenactment, the difference between these two movements can be summarized as one of intent. Historical reenactment seeks historical accuracy as a goal in and of itself. On the other hand, a reconstructionist neopagan views historical accuracy as a means to the end of establishing a harmonious relationship between a belief-community and the gods.

Modern paganism, also known as "contemporary" or "neopagan", encompasses a wide range of religious groups and individuals. These may include old occult groups, those that follow a New Age approach, those that try to reconstruct old ethnic religions, and followers of the pagan religion or Wicca.

Heathenry, also termed Heathenism, contemporary Germanic Paganism, or Germanic Neopaganism, is a modern pagan religion. Scholars of religious studies classify it as a new religious movement. Developed in Europe during the early 20th century, its practitioners model it on the pre-Christian religions adhered to by the Germanic peoples of the Iron Age and Early Middle Ages. In an attempt to reconstruct these past belief systems, Heathenry uses surviving historical, archaeological, and folkloric evidence as a basis, although approaches to this material vary considerably.

Heathenry does not have a unified theology but is typically polytheistic, centering on a pantheon of deities from pre-Christian Germanic Europe. It adopts cosmological views from these past societies, including an animistic view of the cosmos in which the natural world is imbued with spirits. The religion's deities and spirits are honored in sacrificial rites known as blóts in which food and libations are offered to them. These are often accompanied by symbel, the act of ceremonially toasting the gods with an alcoholic beverage. Some adherents also engage in rituals designed to induce an altered state of consciousness and visions, most notably seiðr and galdr, with the intent of gaining wisdom and advice from the deities. Many solitary adherents follow the religion by themselves. Other Heathens assemble in small groups, usually known as kindreds or hearths, to perform their rites outdoors or in specially constructed buildings. Heathen ethical systems emphasize honor, personal integrity, and loyalty, while beliefs about an afterlife vary and are rarely emphasized.

Wicca (English: /ˈwɪkə/), is a modern pagan, syncretic, Earth-centred religion. Considered a new religious movement by scholars of religion, the path evolved from Western esotericism, developed in England during the first half of the 20th century, and was introduced to the public in 1954 by Gerald Gardner, a retired British civil servant. Wicca draws upon ancient pagan and 20th-century Hermetic motifs for theological and ritual purposes. Doreen Valiente joined Gardner in the 1950s, further building Wicca's liturgical tradition of beliefs, principles, and practices, disseminated through published books as well as secret written and oral teachings passed along to initiates.

Many variations of the religion have grown and evolved over time, associated with a number of diverse lineages, sects, and denominations, referred to as traditions, each with its own organisational structure and level of centralisation. Given its broadly decentralised nature, disagreements arise over the boundaries that define Wicca. Some traditions, collectively referred to as British Traditional Wicca (BTW), strictly follow the initiatory lineage of Gardner and consider Wicca specific to similar traditions, excluding newer, eclectic traditions. Other traditions, as well as scholars of religion, apply Wicca as a broad term for a religion with denominations that differ on some key points but share core beliefs and practices.