Candy bar

A candy bar is a type of candy that is in the shape of a bar. The most common type of candy bar is the chocolate bar, including both bars made of solid chocolate and combination candy bars, which are candy bars that combine chocolate with other ingredients, such as nuts, caramel, nougat, or wafers. 
Many varieties of candy bars exist, and many are mass-produced. Between World War I and the middle of the 20th century, approximately 40,000 brands of candy bars were introduced.
Chocolate bars.
A chocolate bar is a bar-shaped piece of chocolate, which may also contain layerings or mixtures of other ingredients. A wide variety of chocolate bar brands are sold. A popular example is a Snickers bar, which consists of nougat mixed with caramel and peanuts. 
The first solid chocolate bar was produced by Fry's of Bristol, England in 1847. Fry's Chocolate Cream became the first mass-produced chocolate bar in 1866. The Goo Goo Cluster was the first mass-produced combination bar, including marshmallow, nougat, caramel, and roasted peanuts. In some varieties of English and food labeling standards, the term "chocolate bar" is reserved for bars of solid chocolate, with "candy bar" used for products with additional ingredients.
Non-chocolate bars.
Candy bars containing no chocolate include: