Feast Day Of Apostle Saint Matthias - 24 February

Quoted below, in part, is from Wikipedia [1]:

Matthias...was, according to the Acts of the Apostles (written c. AD 80–90), chosen by the apostles to replace Judas Iscariot [who betrayed] Jesus.

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There is no mention of a Matthias among the lists of disciples or followers of Jesus in the three synoptic gospels, but according to Acts, he had been with Jesus from his baptism by John until his Ascension.

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...Matthias was stoned at Jerusalem by the local populace, and then beheaded (cf. Tillemont, Mémoires pour servir à l'histoire ecclesiastique des six premiers siècles, I, 406–7). According to Hippolytus of Rome, Matthias died of old age in Jerusalem.

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The feast of Saint Matthias was included in the Roman Calendar in the 11th century and celebrated on...24 February...but 25 February in leap years....In the revision of the General Roman Calendar in 1969, his feast was transferred to 14 May, so as not to celebrate it in Lent but instead in Eastertide close to the Solemnity of the Ascension, the event after which the Acts of the Apostles recounts that Matthias was selected to be ranked with the Twelve Apostles.

[1] https://en.wikipedia.org/wiki/Saint_Matthias, quoted without references and hyperlinks.