https://www.humanreligions.info/tags/7.html
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Human Truth Foundation pages (3):
The Foundations of Islam in Paganism: 3. The Hajj and the Pagan Number Seven
Theosophy: 4. Atlantis, Lemuria and The 7 Root Races, Each With 7 Sub Races
The Book of Revelation: 3. The Symbolism of the Number 7 in the Book of Revelation