Understanding past civilizations is key as 'polytheistic' often relates to historical societies with multiple gods. The polytheistic traditions of the Mayans involved various ceremonies and rituals.
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Modern Usage
'Polytheistic' is less common today but still describes religions like Hinduism with multiple gods. Contemporary Hindu communities sustain their ancient polytheistic customs.
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Implicit Contrast
Using 'polytheistic' often implies a contrast with monotheistic beliefs, which worship one god. In contrast to the monotheistic faiths, the local tribe was strictly polytheistic.