October 21: Difference between revisions

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{{Are You Sure/October 21}}
{{Are You Sure/October 21}}
== Selected Anniversaries ==
{{Template:Selected anniversaries/October 21}}


== Topic of the Day ==
== Topic of the Day ==


{{Daily Favorites/October 21}}
{{Daily Favorites/October 21}}
{{Template:Categories: October 21}}

Latest revision as of 18:13, 22 October 2024


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?

Selected Anniversaries

Topic of the Day

Candy