city in New Mexico where archaeologists found many early human-made objects
an area in the North African country of Algeria; the site of ancient cave paintings
a prehistoric "land bridge" that once connected Asia and North America
site in Chile near where archaeologists found artifacts dating to 12,500 years ago
a place in South Carolina where archaeologists found artifacts that were up to 18,000 years old
long period of time before people developed systems of writing and written language
the study of past cultures through the things that remain such as buildings, tools, or pottery
a scientist who uncovers evidence or proof from the past
objects made by people long ago
to move from one place to another
a period of time when glaciers covered great stretches of land
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.