Decades: 550s BC - 540s BC - 530s BC - 520s BC - 510s BC - 500s BC - 490s BC - 480s BC - 470s BC - 460s BC - 450s BC
Significant People
... waste of money (plus a possible placebo effect). Numerous diet programs use people's concern over their image, as a way to make money. They sell books and videos, ...