秦始皇统一全国后,曾有四次东巡,并在泰山、琅玡、峄山和会稽等地树碑纪念,以此宣扬其功德,昭示天下,亦有统一文字的告示作用,《峄山 After Qin Shihuang unified the country, he had conducted four eastbound patrols and commemorated the monumentations of trees in Mount Tai, Langya, Dangshan and Hueiji so as to promote its merit and show the world that there is also the notices of unification of written words.