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Creation date"Creation date" is a predefined property that corresponds to the date of the first revision of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
05:40:15, 18 July 2021 +
From an obscure phenomenon, face masks became a central part of the COVID-19 psychological operation starting in March 2020. +
Wikispooks Page +
File:Respo reusable face mask certified to en1827 n95 n99 1.jpg +
Face mask +
Face_mask +
File:Respo reusable face mask certified to en1827 n95 n99 1.jpg +
Concept +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +, Face mask +...
24,028 +
JasonCarswell +
Has subobject"Has subobject" is a predefined property representing a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Container">container</a> construct and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
https://en.wikipedia.org/wiki/Cloth_face_mask +
true +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
14:26:06, 16 February 2025 +
