The tree of readers
152 – 246 AH / 769/70 – 860/61 CE العراق
Everyone the register knows who read to this person, and everyone who read to them, generation by generation. A link drawn from an uploaded document is solid; one taken from a printed reference work is dotted and names its source.
The tree was cut at 300 people. Start from a name further down, or ask for fewer generations, to see the rest.