What does the NAACP stand for and why was it formed during the
Progressive Era?

NAACP - Progressive Era The National Association for the Advancement of Colored People (NAACP) was an organization founded as a result of a meeting between Du Bois and a group of African American and white progressives regarding the lynching of two African American men in Springfield, Illinois, the previous year.

Explanation:

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what precedent do you see the ordinance of 1787 setting for the 1st amendment of the us constitution : )

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in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.