Welcome to Marcus's Time Machine! Join Marcus and his time machine as he travels through time to meet some interesting inventors and scientists in U.S. history. As you travel on this fun filled adventure, you will be introduced to African American inventors and scientists who have changed the way we live today. More... Marcus's Time Machine e-book on cd-rom $15.00 ISBN 1-877835-78-1 PC Windows 95 and above Reading Levels 4-7 Try Before You Buy - Free Download Marcus's Time Machine Features

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