Patchy Tans No More
In the olden days of Ancient Greece, having fair skin meant that one belonged to the upper echelons of society. It would take generations before the usual summer tan symbolism (of social prestige) was revived. With it, biology caught up as it revealed that, apart from the aesthetic it provided, having darker skin also had physiological advantages such as more protection from the ultraviolet rays emitted by the sun.
It is worth noting that in some parts of Asia, women make investments in skin whitening products to avoid having dark skin. However, in western countries, a lot of women head to the beach and get their tans. Issues such as having patchy skin often arise. A quick solution is to apply a generous amount of Vaseline all over your body before heading out.