October 21: Difference between revisions

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'''Are You Sure ...'''
{{Daily Image/October 21}}{{Preface/October 21}}


{{Are_You_Sure/October 21}}
== Better Than News ==


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{{Better Than News/October 21}}


[[File:Are You Sure (21 Oct 2020).png|thumb|left|Screenshot: Are You Sure (October 21, 2020)]]
== Beyond Plausible ==


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{{Beyond Plausible/October 21}}


'''On This Day in History and Fiction'''
== In Other Words ==


{{Selected anniversaries/October 21}}
{{In Other Words/October 21}}
 
== Are You Sure ==
 
{{Are You Sure/October 21}}
 
== Topic of the Day ==
 
{{Daily Favorites/October 21}}

Latest revision as of 11:22, 2 July 2023


Better Than News

Beyond Plausible

In Other Words

Are You Sure

• ... that mathematician and academic Wacław Sierpiński made important contributions to set theory (notably his research on the axiom of choice and the continuum hypothesis), number theory, theory of functions, and topology?

Topic of the Day

Candy