A high-tech nation
The war years brought technological advances:
23. 15,000 miles of new telegraph lines, which reached the West Coast
24. Mass production of canned food
25. Battlefield photography
26. Transcontinental Railroad
Everyday things
Wartime helped devise or popularize parts of our daily lives:
27. Can openers
28. Home-delivered mail
29. Left and right shoes shaped differently
30. Standard premade clothing in sizes small, medium and large
31. National paper currency
Next: What military advances arose as a result of the Civil War?
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