<span>Culture,History,Religion,Nationality,Territory ,and Language </span>
The answer is 'Railroads'
The Industrial Revolution in England lead to the development of trains and fast travel.
The United States quickly adopted the technology and brought in English businessmen and engineers to develop railroads in it's sprawling western states.
Railroads were integral in the early years in to cement newly acquired states under the control of the Federal government.
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It was easier for students to read and learn about different subjects. Since there were so many books printed, it was cheaper for learning students.
Hope this helps a little
The answer is C, preserving the Union. Lincoln famously said, "If I could preserve the Union without freeing a single slave, I would."
Definition
and Summary: The Black Codes were a series of statutes and laws enacted
in 1865 and 1866 by the legislatures of the Southern states of
Mississippi, Alabama, Georgia, Louisiana, Virginia, Florida, Tennessee,
and North Carolina following the end of the Civil War at the beginning
of the Reconstruction Era. The Black Codes were created to restrict the
freedom of ex-slaves in the South.
<span><span>Black Codes
</span>Andrew Johnson<span>
was the 17th American President who served in office from April 15,
1865 to March 4, 18 69. One of the important events during his
presidency was the Black Codes during the Reconstruction Era following
the Civil War.</span></span>
