A thread follows one event or historical theme across the archive, wherever and whenever it appears. Pulling a thread opens up a narrowed timeline view filtered to every year that thread touches.
The story of the flight of the ancient Israelites from slavery in Egypt as described by the Pentateuch. The precise basis for the story may be an amalgamation of events from the end of the Bronze Age, though generally speaking, historical consensus dismisses the conventional telling as largely non-historical.