Core Concepts 1.1 Measuring Time

People who study events of the past.

• professors
• historians
• surgeons
• old people

A line marked off with a series of events and dates.

• number line
• sentence
• timeline
• calendar

A list of events in the order in which they occurred.  

• time order
• "If you ain't first ur last"  
• chronology
• oldest to newest

A length of time singled out because of a specific event or development 

• period
• time zone
• time frame
• score

A period is also known as an _______.

• leap year
• decade
• epoch
• long time

Historians use periods and ______ to organize and describe human activities.

• eras
• time frames
• lead years
• commas

History is divided between history and ____________.  

• the future
• prehistory
• jurassic park
• now

Prehistory is the time before humans invented __________. 

• language
• stone tools
• writing
• arithemetic

How long ago did written history begin?

• 152,000 years ago
• 5,200 years ago
• July 4, 1776
• 1945

Years after Jesus's birth are labeled _A.D. meaning anno Domini which means:

• "in the year of our Lord"
• After Death
• Common Era
• Before the Common Era