Grown in Mesopotamia and Egypt, wheat was likely first merely chewed. Later it was discovered that it could be pulverized and made into a paste. Set over a fire, the paste hardened into a flat bread that kept for several days. It did not take much of a leap to discover leavened (raised) bread when yeast was accidentally introduced to the paste.
Instead of waiting for fortuitous circumstances to leaven their bread, people found that they could save a piece of dough from a batch of bread to put into the next day's dough. This was the origin of sour-dough, a process still used today.
In Egypt, around 1000 BC, inquiring minds isolated yeast and were able to introduce the culture directly to their breads. Also a new strain of wheat was developed that allowed for refined white bread. This was the first truly modern bread. Up to thirty varieties of bread may have been popular in ancient Egypt.
It was also during this time that bread beer was developed. The bread was soaked in water and sweetened and the foamy liquor run off. Beer was as popular in ancient Egypt as it is in America today.
The Greeks picked up the technology for making bread from the Egyptians; from Greece the practice spread over the rest of Europe. Bread and wheat were especially important in Rome where it was thought more vital than meat. Soldiers felt slighted if they were not given their allotment. The Roman welfare state was based on the distribution of grain to people living in Rome. Later the government even baked the bread.
Through much of history, a person's social station could be discerned by the color of bread they consumed. The darker the bread, the lower the social station. This was because whiter flours were more expensive and harder for millers to adulterate with other products. Today, we have seen a reversal of this trend when darker breads are more expensive and highly prized for their taste as well as their nutritional value.
In the middle ages bread was commonly