How was Noah Webster significant to the field of education which answer is correct

He established the common school movement.
He advocated for free education for all social classes.
His congregations founded the first African American colleges.
His dictionary standardized the usage of American English.

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D His dictionary standardized the usage of American English.

Explanation:

the answer is a. laws were enacted in the aftermath of the plot to make it harder to free slaves,increasing sectionalism

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).