On the numbers 54 and 108 in ancient worldwide traditions: an extended data base and some possible astronomical connections

The numbers 54 and 108, with some of their multiples and divisors, appear in ancient rituals, traditions, features of sacred structures......as described in the over one hundred cases given below. Never we found an explanation of why they are chosen, as if the origin of their choice was forgotten or a secret not to be revealed. Here we provide a list of such occurrences, mainly from books we read. More can certainly be found by a fuller complete exploration of the literature and others can be found at the Google entry 108 sacred, only partially used by us. The numbers appear mainly in oriental sources (China, India..... ) but also in Middle East, Europe and South America. The collection given here appears to be the largest ever made. It contains about 40% more entries than those published in 2003 in a similar report of the University of Bergamo and also in the journal Migration and Diffusion.