Inventions
Amount of Land
100
What is a rudder?
What is a invention that helped sailing?
200
What is paper money?
What is an invention that changed buying and selling things forever?
300
What is matches?
What is an invention that changed making fire?
300
When is 1280?
What is extending to all of China?
400
What is the printing press?
What is the invention that can help people copy things faster?
500
What is the perfect abacus?
What is an invention in mathematics?
500
When is 1258?
When is when extending to Bagdad?
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