The Jewish, Islamic, and Christian calendars have different structures and timescales. Occasionally, one will overlap for a bit. But for all three to overlap their respective holy days (or month) on the same day, and that day is a 17, that basically proves time travel and is another MOAB.
The Jewish, Islamic, and Christian calendars have different structures and timescales. Occasionally, one will overlap for a bit. But for all three to overlap their respective holy days (or month) on the same day, and that day is a 17, that basically proves time travel and is another MOAB.