The material of this dissertation is based on the characters drawn or carved on the architectural material and potteries such as bricks and tiles.

• 本文以东汉时期书写、刻画或模印于砖瓦等建筑材料及陶质器物上的文字材料为研究材料，砖瓦及陶上的文字本文统称为砖文。