The roads were not much more than trails. They were often so narrow that two pack horses could hardly pass each other. The pack horses each carried two bales or two baskets slung over their backs, which balanced each other. The soft soil was compacted into a deep ditch which rains, floods, and tides, if near the sea, soon turned into a river. Traveling a far distance was unsafe as there were robbers on the roads. Traveling strangers were distrusted. It was usual to wash one's feet in a hot tub after traveling and to dry them with a rough wool cloth. There were superstitions about the content of dreams, the events of the moon, and the flights and voices of birds were often seen as signs or omens of future events. Herbal mixtures were drunk for sickness and maladies. From the witch hazel plant was made a mild alcoholic astringent, which was probably used to clean cuts and sooth abrasions. In the peaceful latter part of the 600s, Theodore, who had been a monk in Rome, was appointed archbishop and visited all the island speaking about the right rule of life and ordaining bishops to oversee the priests. Each kingdom was split up into dioceses each with one bishop. Thereafter, bishops were selected by the king and his witan, usually after consulting the clergy and even the people of the diocese. The bishops came to be the most permanent element of society. They had their sees in villages or rural monasteries. The bishops came to have the same wergeld as an eorldorman: 1200s., which was the price of about 500 oxen. A priest had the wergeld as a landholding farmer [thegn], or 300s. The bishops spoke Latin, but the priests of the local parishes spoke English. Theodore was the first archbishop whom all the English church obeyed. He taught sacred and secular literature, the books of holy writ, ecclesiastical poetry, astronomy, arithmetic, and sacred music. Theodore discouraged slavery by denying Christian burial to the kidnapper and forbidding the sale of children over the age of seven. A slave became entitled to two loaves a day and to his holydays. A slave was allowed to buy his or his children's freedom. In 673, Theodore started annual national ecclesiastical assemblies, for instance for the witnessing of important actions. The bishops, some abbots, the king, and the eorldormen were usually present. From them the people learned the benefit of common national action. There were two archbishops: one of Canterbury in the south and one of York in the north. They governed the bishops and could meet with them to issue canons that would be equally valid all over the land. A bishop's house contained some clerks, priests, monks, and nun and was a retreat for the weary missionary and a school for the young. The bishop had a deacon who acted as a secretary and companion in travel, and sometimes as an interpreter. Ink was made from the outer husks of walnuts steeped in vinegar.