Looking back over the previous century, the shift and influence in fashion has been exponential. New styles are introduced decade after decade, primarily inspired by pop culture, political views, and inspirational style celebrities of the moment. Fashion is defined as "the dress worn by persons or groups with a given society or community." The word "fashion" comes from the Latin word facies meaning "appearance," or "face." Today, fashion is seen as something that is constantly changing to reflect the trends of the time. It is this ever-changing nature of fashion that makes it such an interesting study. When you look at historical images of people wearing clothing, they tend to stick to a few basic styles over and over again. Over time, these basic styles will evolve into new ones based on current trends but still retaining elements of the original style. For example, the classic suit is an item of clothing that was originally designed for military use in the 17th century. Its popularity as daily wear only started in the 20th century with the introduction of textile fabrics that were suitable for everyday use. Even though modern suits retain many aspects of their ancestor's design, they also incorporate new features that were popular at the time they were created. The same can be said about other items of clothing like jeans, shirts, shoes, etc.