In 1878, Thomas Edison began serious research into developing a practical incandescent lamp and on October 14, 1878, Edison filed his first patent application for "Improvement In Electric Lights".
my guess would be imperialism
Black Soldiers rushed to enlist now that they were free from slavery
<span>The middle class and the upper class, upper being the one who had more privileges and were more wealthiest.
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Answer:
B. Including
Explanation:
I found it on a quizlet I hope this is right
