decline in wheat | 0.25 |
spread to africa | 0.25 |
spread to eurasia | 0.25 |
advantageous | 0.25 |
adopted as sugar | 0.31 |
adopted as added salt | 0.31 |
adopted as dairy | 0.31 |
adopted as grain | 0.31 |
adopted as processed or… | 0.31 |
grain storage | 0.38 |
transportation | 0.38 |