A stick figure, also known as a stickman, is a very simple drawing of a person or an animal, composed of a few lines, curves, and dots. It is often drawn by children, and known for its simplistic style. On a stick figure, the head is most often represented by a circle, which can be either a solid color or sometimes embellished with details such as eyes, a mouth, or hair. The arms, legs, torso, and abdomen are usually represented with these straight lines. Details such as hands, feet, and a neck may be present or absent; simpler stick figures often display an ambiguous emotional expression or disproportionate limbs, however, most stick figures can be drawn with four or three fingers. The stick figure is a universally recognizable symbol, in all likelihood one of the most well known in the world. It transcends language, location, demographics, and can trace back its roots for almost 30,000 years. Its simplicity and versatility led to the stick figure being used for a variety of purposes: infographics, signage, comics, animations, games, film storyboards, and many kinds of visual media all employ the stick figure. With the advent of the World Wide Web, the stick figure became a central element within an entire genre of web-based interactive entertainment known as flash animation. Over a period of more than two decades, stick figure animation impacted and shaped the visual landscape of the internet. History The stick figure's earliest roots are in prehistoric art. Some of the most revealing and informative markers of early human life are cave paintings and petroglyphs, ancient depictions covering a variety of subjects left behind on stone walls. Visual representations of people, animals, and depictions of daily life can be found displayed across the walls of numerous habitation sites all over the world, such as depictions of mimis in Australia. Tens of thousands of years later, writing systems that use images for words or morphemes instead of letters—so-called logographies, such as Egyptian and Chinese—started simplifying people and other objects to be used as linguistic symbols. In Mandaean manuscripts, uthras (celestial beings) are illustrated using stick figures. In the early 1920s, Austrian sociologist Otto Neurath developed an interest in the concept of universal language. He quickly established the idea that, while words and phrases could always be misunderstood, pictures had a certain unifying quality that made them a perfect fit for his project.