1. Go out every morning to work in your field.
2. When the Sun rises, make a note on the same fixed piece of wood, e.g., a fence.
3. Observe the leftmost and rightmost positions, these are your solstices.
4 You can now use your fence to identify and predict solstices.
I have read that the auspicious date of December 25th may have been intended to be the Solstice but that the degree of error for "making a note on a fence" is why we have the 25th.
