Blonde stereotypes are stereotypes of blonde-haired people. Sub-types of this stereotype include the "blonde bombshell" and the "dumb blonde". Blondes are stereotyped as more desirable, but less intelligent than brunettes. There are many blonde jokes made on these premises. The blonde bombshell is one of the most notable and consistently popular female character types in cinema. Many showbiz stars have used it to their advantage, including Jean Harlow, Marlene Dietrich, Marilyn Monroe, Jayne Mansfield, Brigitte Bardot and Mamie Van Doren. Background There are several aspects to the stereotypical perception of blonde-haired women. On one hand, over history, blonde hair in women has often been considered attractive and desirable. Blonde hair has been considered attractive for long periods of time in various European cultures, particularly when coupled with blue eyes. This perception is exploited in culture and advertising. In contemporary popular culture, it is often stereotyped that men find blonde women more attractive than women with other hair colors. For example, Anita Loos popularized this idea in her 1925 novel Gentlemen Prefer Blondes. Blondes are often assumed to have more fun; for example, in a Clairol commercial for hair colorant, they use the phrase "Is it true blondes have more fun?" Some women have reported they feel other people expect them to be more fun-loving after having lightened their hair. In much of the Americas, the blonde stereotype is associated with being less serious or less intelligent. However, an analysis of IQ data carried out by the National Longitudinal Surveys on a survey database of American "baby boomers" (NLSY79 data), the natural blonde women in this population category (excluding African American and Hispanic persons) have a slightly higher mean IQ than brunettes, black and red-haired women. On the other hand, a blonde woman is often perceived as making little use of intelligence and as a "woman who relies on her looks rather than on intelligence." At the same time, people tend to presume that blondes are less serious-minded and less intelligent than brunettes, as reflected in "blonde jokes". The root of this notion may be traced to Europe, with the "dumb blonde" in question being a French courtesan named Rosalie Duthé, satirised in a 1775 play Les Curiosités de la Foire for her habit of pausing a long time before speaking, appearing not only stupid but literally dumb (meaning mute). The latter stereotype of "dumb blonde" is exploited in blonde jokes.