May 14.1948. Hope this helps!
Explanation:
ehhh try to eliminate the options that you don't think is right
The invasion of the North American continent and its peoples began with the Spanish in 1565 at St. Augustine, Florida, then British in 1587
The correct option is A.
There are two basic sources which an author can draw from when writing an article. The first one is primary source and this refers to an account of an event or history by a person who actually witness the event or the person who experience the event directly. The second one is secondary source and it refers to those accounts of events that are drawn from primary sources.
Thus, a journal account about civil war by a civil war soldier who experienced the war is considered a primary source.
I have chose primary source to be the answer. Check out the definition of "primary source." secondary wouldn't make sense here.