180: The Bird Thunderdome (w/ Katherine Green!)
Dear Hank & John
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Introduction
Crash course is an on line educational initiative designed to lower barriers to learning. To accomplish that mission, we need your help to help us keep it free. You can either get a two thousand learner coin or ten thousand learner coins. The latter is limited. There's only 500 of them. Why wait? Crash course coin dot com support trash course.
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