MidriffIn fashion, the midriff is the human abdomen. The midriff is exposed when wearing a crop top or some forms of swimwear or underwear. "Midriff" is a very old term in the English language, coming into use before 1000 AD. In Old English it was written as "midhrif", with the old word "hrif" literally meaning stomach; in Middle English, it was "mydryf". The word fell into obsolescence after the 18th century. The word was revived in 1941 by the fashion industry, partly to avoid use of the word "belly" which genteel women considered undesirable in reference to their bodies, as it has connotations of obesity.
Tan lineA tan line is a visually clear division on the human skin between an area of pronounced comparative paleness relative to other areas that have been suntanned by exposure to ultraviolet (UV) radiation or by sunless tanning. The source of the radiation may be the sun, or artificial UV sources such as tanning lamps. Tan lines are usually an inadvertent result of a work environment or of recreational activities, but are sometimes intentional. Many people regard visible tan lines as unsightly and seek to avoid tan lines that will be visible when regular clothes are worn.
NaturismNaturism is a lifestyle of practicing non-sexual social nudity in private and in public; the word also refers to the cultural movement which advocates and defends that lifestyle. Both may alternatively be called nudism. Though the two terms are broadly interchangeable, nudism emphasizes the practice of nudity, whilst naturism highlights an attitude favoring harmony with nature and respect for the environment, into which that practice is integrated.
Roman EmpireThe Roman Empire was the post-Republican state of ancient Rome. It included territory around the Mediterranean in Europe, North Africa, and Western Asia, and was ruled by emperors. The adoption of Christianity as the state church in 380 and the fall of the Western Roman Empire conventionally marks the end of classical antiquity and the beginning of the Middle Ages.