Lithuania country guide — editorial references, 19 October 2026

Official Statistics Portal — 2021 population and housing census:
https://osp.stat.gov.lt/2021-gyventoju-ir-bustu-surasymo-rezultatai
Population: 2,810,761 usual residents; dated census count, not a current estimate.

Seimas — constitution, parliament and state history:
https://www.lrs.lt/
https://www.lrs.lt/home/Konstitucija/Constitution.htm

European Union — Lithuania, membership and institutions:
https://european-union.europa.eu/principles-countries-history/eu-countries/lithuania_en
European Central Bank — euro changeover, 1 January 2015:
https://www.ecb.europa.eu/euro/changeover/lithuania/html/index.en.html
NATO — member countries (Lithuania joined 29 March 2004):
https://www.nato.int/cps/en/natohq/topics_52044.htm

UNESCO World Heritage — Lithuania properties:
https://whc.unesco.org/en/statesparties/lt/
Vilnius Historic Centre: https://whc.unesco.org/en/list/541/
Curonian Spit (shared with Russia): https://whc.unesco.org/en/list/994/
Kernavė: https://whc.unesco.org/en/list/1137/
Modernist Kaunas: https://whc.unesco.org/en/list/1661/
UNESCO intangible heritage — song celebrations, sutartinės, cross-crafting:
https://ich.unesco.org/en/state/lithuania-LT

Lithuania Travel — regional geography, cuisine, culture and sights:
https://lithuania.travel/en
Protected areas: https://vstt.lrv.lt/en/
Vilnius University (founded 1579): https://www.vu.lt/en/
International Holocaust Remembrance Alliance — Lithuania:
https://holocaustremembrance.com/countries/lithuania

Map data and scope
The land outline uses Natural Earth 1:10m country geometry (public domain),
including the Lithuanian Curonian Spit.
https://github.com/nvkelso/natural-earth-vector/blob/master/geojson/ne_10m_admin_0_countries.geojson
https://www.naturalearthdata.com/about/terms-of-use/
City and sight positions are curated longitude/latitude points for learning.
The two learning groups are not administrative or cultural boundaries.
Landscape pins are representative positions, not entrances or trailheads.
Sights are cross-referenced with the named Wikipedia articles and official tourism
or heritage descriptions. Coordinates support country-scale learning.

Photography
Existing local Lithuanian lesson photographs are reused without modification.
Each image retains its author, licence and Wikimedia Commons source link in
src/lib/european-speak-heroes.json and the guide's hero metadata.

County and water maps, updated 28 October 2026:
Lithuanian State Data Agency: ten counties and 60 municipalities:
https://osp.stat.gov.lt/en/regionine-statistika-pagal-statistikos-sritis
Natural Earth 1:10m administrative areas, rivers, lakes and marine areas
(public domain): https://www.naturalearthdata.com/
Boundaries are generalised for learning. City coordinates are curated.
Coastal water windows do not show maritime claims or borders.