Young children express their creativity more than anything else with their box of crayons.
This has been true for nearly a hundred years, and is largely due to the efforts of one American company. Later, they began to make slate pencils for students. While touring schools with these two items, company salesmen saw a need for safe, affordable colored crayons. At this time, wax crayons were big, dull-colored and clumsy, and used mainly in industry. They were an overnight success.