The Early 20th Century: Innovation and Invention

APUSH Blog Post

 

(link if you can’t see the image)

 

information sources:

http://www.acs.org/content/acs/en/education/whatischemistry/landmarks/bakelite.html
http://swling.com/blog/tag/shortwave-radio-history/
http://web.mit.edu/invent/iow/birdseye.html
Really Useful: The origins of everyday things by Joel Levy

image sources:

http://vintageamericanadvertisements.blogspot.com/2012/07/birdseye-frozen-food.html
http://styleenmiopinion.blogspot.com/2011/10/collections.html
http://chestofbooks.com/reference/Wonder-Book-Of-Knowledge/The-Story-Of-Electricity-In-The-Home-Part-6.html#.UzjeqPldUQN
http://www.northerntool.com/shop/tools/product_200498564_200498564

 

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