A historian is writing an article for a history website. The article is divided into the following topics:
• The division of the South into military districts
• The impeachment of the president
• The ratification of the Fourteenth and Fifteenth Amendments
Which era in U. S. history is the focus of this article?
O The Antebellum Era
O The Reconstruction Era
O The Jacksonian Era
The Federalist Era