Social
A time period of 100 years
Century
One of seven large bodies of land on Earth
Continent
Someone who moves from place to place rather than settling permanently in one location
Nomad
An original record of a past event, usually created by someone who actually saw or participated in the event
Primary Source
Where was the earliest known human drawing discovered?
Blombos Cave
An object made or used by humans long ago
Artifact
The order in which events occur
Chronological Order
To move from one country or place to another
Migrate
What is the abbreviation for Before Christ?
BC
What was a very valuable tool discovered by hunter-gatherers?
Flint
A time period of 10 years
Decade
The long-term trends in weather elements and atmospheric conditions
Climate
One of five very large bodies of salt water that covers nearly three-fourths of Earth's surface
Ocean
What is the abbreviation for Anno Domini?
AD
Where do historians believe earliest humans originated from?
Africa
A member of a nomadic group of people who live chiefly by hunting, fishing, and harvesting wild food
A useful tool for showing events in chronological order
Timeline
The time before written records
Prehistory
What is the abbreviation for Before Common Era?
BCE
What was the earliest known civilization?
Mesopotamia
To dig out material
Excavate
A measurement of time that is 365 days, or 12 months
Year
A physical feature of the Earth's surface, such as a desert, mountain, or river
Landform
What is the abbreviation for Common Era?
CE
Why do we believe people left Africa?
1. Climate change
2. Animal migration
3. Need for resources