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History 5 Week 4 Summary
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This week in history I learned about portland cement, electromagnets, the passenger rail, and the match. First, I learned about portland cement. Portland cement was invented by a man named Joseph Aspdin. Joseph invented portland cement so that structures could be built on a flat surface. He named it portland cement because the stones…
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Latest Comment
I loved this book so much!
people used the same evidence they used to condemm her to declare her saint! isn’t that neat!
Me too!!!