What year did America become educationally modernized ??

Help please:/

19th-Century History of Education in the U.S.

Explanation:

After society embraced this new philosophy, the first public school in the U.S. was established in 1821.

the right answer for the question that is being asked and shown above is that: "their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful.  " the  participant in european imperialism is being described below is that  their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful. 

the correct answer is 50.