Although 20 years of history research of book and publishing industry has repeatedly said that the Bamboo Slips could not be found before the Warring States period

in further research

some factss show that the Shang and Western Zhou Dynasty have brochures of Bamboo Slips.From the shapes

forms

and meanings of "Ce"on the oracle inscriptions of the Shang dynasty

we can see that the "one long one short

two series"was a special way dedicated to written policy of Shang dynasty.To the Han dynasty

"one long

one short

two series" is still a special written policy which could not be used for the decree or other order by the emperor.No matter the Western Zhou dynasty and the Eastern Zhou dynasty

the original carrier of "Ce"were the Bamboo Slips

not metal inscriptions.Brochures of Bamboo Slips is the professional communication tools of Chinese ancestors

for its low cost and efficient function.Initially

Brochures of Bamboo Slips and the Han characters are the same as the main tool for governing the country.It is impossible to maintain a unified country without the Brochures of Bamboo Slips.