PrehistoryWordNet Explorer

the time during the development of human culture before the appearance of the written word

an amount of time

(archeology) a period between the Stone and Iron Ages, characterized by the manufacture and use of bronze tools and weapons

(archeology) the period following the Bronze Age; characterized by rapid spread of iron tools and weapons

(archeology) the earliest known period of human culture, characterized by the use of stone implements

any period of time during which glaciers covered a large part of the earth's surface