Angad is the answer to a question people ask about the succession: Nanak had two adult sons and chose neither, picking a follower he renamed as his own limb. The Gurmukhi script is his most consequential act — it existed in rough forms already, but he fixed and propagated it, which meant Punjabi could carry scripture without Sanskrit or Persian mediation and without the Brahmin as gatekeeper. He set up schools, collected Nanak's hymns from those who had them, and commissioned the first janamsakhi. The wrestling ground at Khadur is remembered because it fits the theology: bodies are not the problem. His wife Mata Khivi ran the langar during his Guruship and is the one woman the scripture names, which tells you the institution was already central by the second generation.