Queen Elizabeth was a good influence on Henry's character. Her active beneficence was a counteracting influence to his avaricious predisposition. When Henry and his Queen traveled through the nation, they often stopped to talk to the common people. They sometimes gave away money, such as to a man who had lost his hand. Henry paid for an intelligent boy he met to go to school. Henry had the first paper mill erected in the nation. He fostered the reading of books and the study of Roman law, the classics, and the Bible. He had his own library and gave books to other libraries. The age of entry to university was between 13 and 16. It took four years' study of grammar, logic, and rhetoric to achieve the Bachelor of Arts degree and another five before a master could begin a specialized study of the civil law, canon law, theology, or medicine. Arabic numbers replaced Roman numerals, making multiplication and division possible. Humanist studies were espoused by individual scholars at the three centers of higher learning: Oxford University, Cambridge University, and the Inns of Court in London. The Inns of Court attracted the sons of gentry and merchants pursuing practical and social accomplishments. The text of 'readings' to members of the inns survive from this time. In the legalistic climate of these times, attorneys were prosperous. The enclosure of land by hedges for sheep farming continued, especially by rich merchants who bought country land for this purpose. Often this was land under the plough. The tenants at will were thrown off it immediately. That land held by copyholders of land who had only a life estate, was withheld from their sons. Only freeholders and copyholders with the custom of the manor in their favor were secure against eviction. The real line of distinction between rural people was one of material means instead of legal status: free or unfree. On one extreme was the well-to-do yeoman farmer farming his own land. On the other extreme was the agricultural laborer working for wages. Other land put to use for sheep breeding was waste land. There were three sheep to every person. The nearby woodlands no longer had wolves or lynx who could kill the sheep. Bears and elk are also gone. There were still deer, wild boar, wildcats and wild cattle in vast forests for the lords to hunt. Wood was used for houses, arms, carts, bridges, and ships. The villages were still isolated from each other, so that a visitor from miles away was treated as warily as a foreigner. Most people lived and died where they had been born. A person's dialect indicated his place of origin. The largest town, London, had a population of about 70,000. Other towns had a population less than 20,000. The population was increasing, but did not reach the level of the period just before the black death.