Civil War-era sites and events in this region include Harpers Ferry, West Virginia; Antietam.

Entity and relation annotations:
id: 0
type: entity
value: text: Antietam
labels: <Location>
id: 1
type: entity
value: text: Harpers Ferry
labels: <Location>
id: 2
type: entity
value: text: West Virginia
labels: <Location>
id: 3
type: entity
value: text: Civil War-era
labels: <Date>
id: 4
type: entity
value: text: Civil War
labels: <Event>
type: relation
to_id: 2
labels: Location:located_in:Location
from_id: 1