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Arka - Čudesni svijet na granici nauke #108, 1991/IX

Kraj vremena: Revizija proročanstva Maya

British author Adrian Gilbert (co-author of The Mayan Prophecies from 1995) in The End of Time offers the most thorough and sober modern interpretation of the Mayan calendar and the so-called "2012 prophecy", completely rejecting New Age hysteria.

Arka - Čudesni svijet na granici nauke #114, 1991/XI

Arka - Čudesni svijet na granici nauke #92, 1991/V

Ciklus svemirskih katastrofa: Potopi, požari i skapavanja u povijesti civilizacije

The book is the most readable and complete overview of the evidence that human civilization has already been nearly wiped out of the universe once – and that such cycles may repeat themselves every few tens of thousands of years.

Keltski horoskop

In addition to introducing the reader to the symbolism of the Celtic horoscope, which is based on their worship of trees, the author offers a brief introduction to who the Celts were, what their religion, symbolism was, as well as basic information about