"Older times" = 2000 BC or Victorian?

If you check the traditions of ancient gatherings, I have noticed that they tend tobe held on the full moon, so people can have night travel before and after. Or maybe it's not so dark when camping out. " Passover is a spring festival, so the 15th day of Nisan begins on the night of a full moon after the northern vernal equinox." (Wikipedia)