To understand the development of education in the United States, an academic enthusiast can create a free timeline describing the major events. As the below diagram suggests, local schools and Dame Schools came into existence in 1600, where students were taught basic skills and religion and were open to those who could afford education for their children. In 1700, Itinerant Schools were initiated where schooling was carried out from village to village. To prepare the best students for further demographics, Latin Grammar Schools were also constructed where wealthy young students studied foreign languages. Timelines are often used in history textbooks and biographies -- they explain what happened during a certain period of time or to a particular person, starting with the earliest event and moving forward through time. Timelines can use any suitable scale representing time, suiting the subject and data; many use a linear scale, in which a unit of distance is equal to a set amount of time.