Way History: 199612966

converting some old source tags to a more consistent practice + some validator fixes

end_date	1724
entity	{ "label": "Russian Empire", "pk": 233 }
fixme	find source map & double-check complete border
source	https://chronmaps.com/admin/te/233
source:id	233
source:name	Chronmaps
start_date	1721
visual_cen	{ "type": "Feature", "properties": null, "geometry": { "type": "Point", "coordinates": [ 97.239337, 62.169700 ] } }
wikidata	Q34266
wikipedia	en:Russian Empire

17 nodes

adding some empire-related chronology relations

end_date	1724
entity	{ "label": "Russian Empire", "pk": 233 }
fixme	find source map & double-check complete border
source	Chronmaps
source:id	233
source:url	https://chronmaps.com/admin/te/233
start_date	1721
visual_cen	{ "type": "Feature", "properties": null, "geometry": { "type": "Point", "coordinates": [ 97.239337, 62.169700 ] } }
wikidata	Q34266
wikipedia	en:Russian Empire

17 nodes

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