Civil War Events in September: Chantilly, Atlanta, Harpers Ferry and Antietam

From American Trust September 2021 calendar.

1862:  SEPTEMBER 1

Battle of Chantilly, Virginia  (I was just reading about this in the latest America's Civil War magazine.  I had never heard of it before.

1864:  SEPTEMBER 2

Federal forces occupy Atlanta, Georgia.

1862:  SEPTEMBER 14

Battle of South Mountain Gap, Maryland.

1862:  SEPTEMBER 15

Capture of Harpers Ferry, Virginia (now West Virginia)

1862:  SEPTEMBER 17

Battle of Antietam, Maryland

--Old Secesh