Relation History: 2778596

Resolve duplicate relations for Sanilac County, Michigan after import

Newberry Library Atlas of Historic County Boundarys v2 Part 3/6

admin_level	6
boundary	administrative
end_date	1837-01-25
import:county_type	county
license	CC0-1.0
name	Sanilac County (1822-1837)
nl_ahcb:id	7848
nl_ahcb:id_text	mis_sanilac
nl_ahcb:source	Terr. Papers U.S., 11: 310-311
nl_ahcb:version	1
place	county
source	https://publications.newberry.org/nl_ahcbp/downloads/united_states.html
source:name	Newberry Library Atlas of Historical County Boundaries
start_date	1822-09-10
start_event	SANILAC created by Michigan Territory from ST. CLAIR and from Non-County Area 2 attached to OAKLAND.
type	boundary
wikidata	Q82510
wikipedia	en:Sanilac County, Michigan

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