<sod>As far back as the Iron Age, Welsh folk were using wild cereals to create a coarse bread. By the time the Romans invaded, Celtic skills with bread had progressed to the point that white or brown breads could be produced. The Roman invasion lead to many Welsh people moving to the less hospitable uplands, where the cereal crops which could be grown were oats, barley and rye. Barley bread was the main bread eaten in Wales up until the 19th century, with rye bread created for medicinal purposes. Oats were to bulk out meat or meat and vegetable stews, also known as pottage.{{sfn|Freeman|1996|pp=27-28}}<eod>
<sod>As far back as the Iron Age, Welsh folk were using wild cereals to create a coarse bread. By the time the Romans invaded, Celtic skills with bread had progressed to the point that white or brown breads could be produced. The Roman invasion lead to many Welsh people moving to the less hospitable uplands, where the cereal crops which could be grown were oats, barley and rye. Oat and barley breads were the main breads eaten in Wales up until the 19th century, with rye bread created for medicinal purposes. Oats were to bulk out meat or meat and vegetable stews, also known as pottage.{{sfn|Freeman|1996|pp=27-28}}<eod>