The history of the invention of pencils can also be traced back to ancient times. It is generally believed that the ancestors of pencils were in England, but the word "pencil" in English comes from the ancient Roman word "Pencinus". You can also see the shadow of the Latin word "feather" here. It can be seen that the predecessor of the pencil is also a feather.
/kloc-In the middle of the 6th century, British shepherds picked up graphite from an open-air graphite mine, scribbled marks on the sheep, and wrapped it with ropes to prevent it from breaking and getting dirty. /kloc-In the mid-8th century, German chemists mixed graphite powder, sulfur, antimony and resin, which solved the problem that graphite was easily broken. Not long after, French chemist Nicholas was ordered by Napoleon to develop a graphite pen. He mixed appropriate clay into graphite and baked it into refills with different soft and hard depths. /kloc-At the beginning of the 9th century, William Monroe of the United States used a machine to make holes and slots in the wooden strips, and then clamped the graphite pen core with two perforated wooden boards, thus inventing the first pencil with modern concept. According to the measured data standard, a standard pencil can draw a lead line about 22 kilometers long, and at least 45,000 words can be written and cut about 20 times. It is said that the inventor of the eraser for writing pencil tips became a millionaire because of his patent, which is naturally another interesting anecdote.
Ballpoint pen is also a big category of hard pen family, and at the same time, it is also the youngest. It was invented by Hungarian brothers Bailo and Georg in the late 1930s. However, the piston-type refill at that time had many shortcomings, so it was changed to a refill that sent ink according to the principle of capillary penetration. Later, the United States developed a pen that transports ink by gravity, and this ballpoint pen was quickly popularized and applied.