. . "Stone Age"^^ . . "115231964"^^ . . "0.125"^^ . "(archeology) the earliest known period of human culture, characterized by the use of stone implements"@en-us . "110941830"@en-us . "Stone Age"@en-us . "15231964-n"^^ . "0.125"^^ . . . . . . . "114370779"@en-us .