A yearbook, also known as an annual, is a type of a book published annually. One use is to record, highlight, and commemorate the past year of a school. The term also refers to a book of statistics or facts published annually. A yearbook often has an overarching theme that is present throughout the entire book. Many high schools, colleges, elementary and middle schools publish yearbooks; however, many schools are dropping yearbooks or decreasing page counts given social media alternatives to a mass-produced physical photographically-oriented record. From 1995 to 2013, the number of U.S. college yearbooks dropped from roughly 2,400 to 1,000. A marble slab commemorating a class of military cadets in Ancient Athens during the time of the Roman Empire is an early example of this sort of document. Proto-yearbooks in the form of scrapbooks appeared in US East Coast schools towards the end of the 17th century. The first formal modern yearbook was the 1806 Profiles of Part of the Class Graduated at Yale College. Yearbooks published by Australian schools follow a consistent structure to their North American counterparts. Australian yearbooks function as an annual magazine for the school body, with a significant focus on objectively reporting the events that occurred during the schooling year. Yearbook staff predominantly consists of only one or two school teachers who serve as editors in chief. Australian school yearbooks are predominantly created on A4 paper size, featuring a softcover style front-and-back cover, typically 250 or 300 g/m2 density. Hardcover style yearbooks are not as common, although exceptions occur. This is sold as allowing a higher level of student involvement whilst making the workflow simpler and easier for all involved. Additionally, some schools feature a separate yearbook for students in year 2. Australian school yearbooks are primarily published with technology, with a mix of color, spot color, and black and white pages, depending on the school's budget. India does not have a long history of publishing school yearbooks.