Inventions that changed the way we live What did Johann Gutenberg do that made printing books in quantity possible? What led to the development of computers? How did Thomas Edison make the lightbulb practical? How were the first engines created and their design refined? Discover the innovations and inventors that laid the foundations of modern technology through lessons with three levels of difficulty, then test your knowledge with interactive quizzes and challenging games.
* Gutenberg's printing press
* How computers were developed
* Orville and Wilbur Wright's first airplane
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