Renaissance
Around 1440 the first printed books were made in Europe. The printing press made it possible to print copies of large books like the Bible and sell them cheaply. It took 300 calf skins or 100 pig skins to print the Bible. Printers soon began to print everything that they thought was interesting: Ancient Greek and Roman writings, poetry, and plays; stories about the lives of the saints; mathematics textbooks; medical textbooks; Christian stories; erotic stories; books about animals and monsters; maps of the world; and advice to princes about how to rule their people.