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Unit 1: Era 1—Our Big History (13.82 billion years ago to the future)

400 possible mastery points

About this unit

Human history started billions of years before humans existed. It may sound like a riddle, but using scales and frames to understand the various contexts of our past will show how history itself is a human invention.

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Unit test

Level up on all the skills in this unit and collect up to 400 Mastery points!