The blonde stereotype has changed dramatically over the centuries, and the latest incarnation is the "stupid" image. The short answer to your question would be that it's a combination of historical stereotype, bad press, and human nature. The long answer is more interesting. Let's start with history. Blonde hair is a recessive trait, and therefore somewhat rarer than brown or black hair. That has traditionally made it desirable. A quick perusal of art verifies this. Browse a book of Renaissance art, and count the blondes. You'll see a good number of blondes, even coming from the Mediterranean, where most people have darker skin and hair. For that matter, check out all the reference to golden-haired Greek and Roman deities. The locals of both those areas tend to be beautifully olive-skinned and brunette, with blondes showing only very rarely. Whenever someone has the good fortune to be favored by society purely because of how they were born, those not so favored are likely to resent them. Especially over time. By the mid-nineteenth century, blondes were considered seductive, conniving, sinful, and evil. Short stories and novels--and especially the three-volume wonders so enjoyed by young women of the time--often pitted a virtuous young brunette against a wicked, deceitful blonde. (The opposite of what we often see on television today!) This stereotype held for a few years, until bleaching came into vogue. Suddenly, brunettes had the world of blondness opened to them, and, like magic, the evil blonde image vanished. Blondes were considered cute and innocent. (Remember all those pixie-like platinum blonde silent movie stars?) In those early days of hair dying, bleaching your hair blonde was much trickier than it is today. Ingredients were often expensive, and they are pretty volatile. Add too much peroxide, for example, and you risk burning your scalp (or ending up bald). Usually, the very-fair, bottle blondes, then, were the women who could afford it. Being a bottle-blonde marked you as, well, if not exactly wealthy, at least well-off enough that you could buy such luxuries. Blondeness became associated with wealth and social status. By the mid-twentieth century, dyeing your hair was much cheaper, but the image of blondes as rare and desirable still held sway. Blondes (including bottle-blondes) were often seen as social climbers, cashing in on their wholesome attractiveness to join the socialite sect and raise their status. The party circuit became populated with fair-haired beauties. (Blondes have more fun, after all!) These party-girls often made their money and their reputations as trophy wives or by upgrading lovers. Rumors abounded, and blondes became seen as women who sleep their way to the top. The implication, then is that not only are blondes "loose," but their good looks are all they have available to them. They can't work their way to the top by virtue of their minds (and therefore, their minds aren't all that great). The fact that so many of the wealthy, happy-go-lucky uppercrust were blondes only added to the virulence of such stereotypes by adding an element of jealousy. All of this was cemented and spread by blonde jokes, which prey on these feelings to spread an image of blondes as stupid, vapid, and slutty. Certain famous (or infamous?) blonde celebrities have also contributed, most recently, dippy blondes like Jessica Simpson and Anna Nicole Smith. There you have it. Blondes are seen as stupid because of reaction against the old image of blonde as beautiful, class jealousy, their image of being sexual promiscuous, and the contributions of the rich, famous, and airheaded.

Because they are. They were raised to act that way because that's what people expected of them. It's like a self-fulling prophecy.

maybe because a lot of actors/actresses who have blond hair served as bad role models or acted in stupid ways.

Ok, so there was once a blonde, a brunette, and a read-head and they robbed a bank. They duck into a barn to hide from the cops, and crawl into three convenient sacks. The cops burst in, and nudge the sack with the red-head in it. "Meow!" So the cops figured there was a cat in the sack. They nudge the one with the brunette, and she goes "Arf arf!" So they figured it was a puppy. They then proceed to the sack with the blonde in it, and she screams "POTATOES!!" I am blonde, therefore I am allowed to tell that joke.

think some blond may act like slut and act stupid and now people over do it!im sry but im blond and im really good at school, im even one of the smartest out of my friends!

One name, one statement... Paris Hilton - Diet pop makes you get fat. Come on, She is rich and cute, but dumb as a nail.

TRUE Blondes aren't, dumb, stupid, OR inferior. It's the bleached out, bottled Blondes that give us truies A bad name. Too much of that peroxide seeps into thier brain cells !! It also comes from the 1970's shows such as Threes Company with the black rooted bouncy blondes that are beautiful but stupid as a bottle of bleach. BUT, look at shows such as M*A*S*H. Loretta Swit, a truie, put most of the men on that show to shame. She was blonde, bouncy and as smart as she was beautiful.

because other people are jealous of there attrasciveness, that is where it all stemed from. and as for the coment about bottled blondes giving us a bad name, how about grow up, everyone has the right to do whatever they choose with there appearance and that doesnt make them thick!

Intelligence is not related to hair color. But it’s all her Fault (LOL):Barbie:

Bloud hair tends to be relalted to the upper east europe region. Education was not the best in the 1800s, and they grew up on farms, so when they came to the united states, unlike the brenate westren eurpoean immagrants they where untrained for the simple factory jobs and did not know how to ask for help because of the language barrier. The factory workers did not understand this so this gives the dumb bloud imainge

Because of paris hilton

Hey, we need to have SOME group we can all look down on. Used to be you told Polock jokes. But then the PC engines were turned on, and we weren't allowed to do that anymore. So now it's the 'ditzy' blonde, thanks to Marilyn Monroe, Paris Hilton, and who knows what other famous blondes. Actually I'm kinda surprised redheads didn't get it because of Lucille Ball.

well,two of my best friends are blonde. ONe of them is avergae intelligence, the other of superiour intelligence that I can never match. I use to be blonde but all the sunlight turned it brown. and no, they didn't die their hair either. well... one of them did but she dyed it brown... :]