Way History: 199976004

added NWT

EDGE_ID	22820010
license	CC0-1.0
source	https://publications.newberry.org/ahcbp/downloads/united_states.html
source:name	Newberry Library Atlas of Historical County Boundaries

10 nodes

converting some public domain tags to CC0-1.0

EDGE_ID	22820010
license	CC0-1.0
source	https://publications.newberry.org/ahcbp/downloads/united_states.html
source:name	Newberry Library Atlas of Historical County Boundaries

12 nodes

Added Alaska Time Zone boundary, conflating w/ existing boundaries where available; sorted members of just about every boundary in the state

EDGE_ID	22820010
license	CC0 / public domain
source	https://publications.newberry.org/ahcbp/downloads/united_states.html
source:name	Newberry Library Atlas of Historical County Boundaries

12 nodes

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