The earliest historical records describe examples of shaving the heads of people, such as in Egypt and Rome. In ancient Greece, long hair was a symbol of wealth and power, while a shaven head was appropriate for a slave. Throughout much of the 20th century in many Western countries, head shaving was considered somewhat unusual or lower class. Head shaving was often associated with manual workers such as seamen, dock workers and soldiers, as well as with prisoners and psychiatric hospital patients.