Önwa mbu 21
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Àtụ:Calendar/Sun1stMonthStartTus
Önwa mbu 21 bu ubochi nke 21st (iri abuo na otu) na onwa ana kpo January ma na afo nile. Na Gregorian calender, anyi nwere agugu ubochi 344 (345 na afo nke ana-kpo leap-year) du mgbe afo na agwu.