Bumper sticker
They encompass commercial, religious, secular, military, and sports-related themes, allowing individuals to showcase affiliations or support for various causes, regions, or groups.
The advancement of fluorescent inks during World War II and the accessibility of pressure-sensitive and adhesive materials in the post-war period played a significant role in the development and widespread adoption of bumper stickers.
In some countries, such as the United States, bumper stickers are a popular way of showing support for a candidate for a government seat and become more common during election years.
Colorado State University social psychologist William Szlemko found that aggressive driving is linked to the number of markers a person has on their car, regardless of the messages portrayed.
[4] Lester Dill, promoter of Meramec Caverns in Missouri, was an ardent adopter of the bumper sign to attract motorists to his site.
Developments in material manufacturing during World War II led to the widespread use of daylight fluorescent inks, which were invented by Bob Switzer and his brother Joe.
These inks appeared to glow during the daytime and were useful to support various wartime activities[further explanation needed]; they were favored by early bumper sticker manufacturers after the war.
[6] In addition, increased use of vinyl by the general public after World War II led to the eventual use of this material in bumper stickers.
Early widespread uses of the advertising bumper sticker were for tourist attractions,[9] such as Marine Gardens, Florida, Seven Falls, Colorado, Meramec Caverns in Missouri, and Lookout Mountain, Tennessee.
The court referenced the First Amendment, stating "the provision regulating profane words on bumper stickers reaches a substantial amount of constitutionally protected speech and unconstitutionally restricts freedom of expression".
For instance, in Sweden, this is the normal place to put them; bumper stickers are referred to as "bakrutedekal" in Swedish, meaning "rear window decal".
