Question

choose the right battles to complete the sentences.
on july 21, 1861, the union and the confederacy fought at the
antietam
first battle of bull run
chancellorsville

(chart content: timeline with dates 1861, 1862, 1863; events like july 21, 1861?, march 9, 1862 monitor vs. merrimack, sept. 17, 1862?, aug 29 - 30, 1862 second battle of bull run, dec. 13, 1862 battle of fredericksburg, may 1 - 6, 1863? )

Explanation:

The sentence is about a battle on July 21, 1861, between the Union and Confederacy. The First Battle of Bull Run (also known as First Manassas) was fought on July 21, 1861. Antietam was in 1862, and Chancellorsville was in 1863, so the correct battle to complete the sentence is First Battle of Bull Run.

Answer:

First Battle of Bull Run