For most of the world’s 1.8 billion Muslims, the question of when Ramadan begins will be settled not by algorithms, not by calendars printed months in advance, but by something far more ancient and uncertain: a small sliver of light, visible...



For most of the world’s 1.8 billion Muslims, the question of when Ramadan begins will be settled not by algorithms, not by calendars printed months in advance, but by something far more ancient and uncertain: a small sliver of light, visible...