Given the question: Question: "what skills became traditions?"  Context: "Much of the Alpine culture is unchanged since the medieval period when skills that guaranteed survival in the mountain valleys and in the highest villages became mainstays, leading to strong traditions of carpentry, woodcarving, baking and pastry-making, and cheesemaking."  Answer:
The answer is:
carpentry, woodcarving, baking and pastry-making, and cheesemaking