'Tis the feast of Saint Hilary of Arles, Bishop (circa 400-449): Saint-link ūnus, Saint-link duo, & Wikipedia-link.
Commentary: Wayback Machine.
'Tis also the feast of Saint Aventinus, Deacon (died circa 1180): Saint-link & Wikipedia-link.
In some dioceses, 'tis the Solemnity of the Ascension of the Lord, but in the Diocese of Lansing, as in many others, the observance has been moved to the Seventh Sunday of Easter, which this year falls on 8 May.
Scripture of the Day
The Acts of the Apostles, chapter eighteen, verses one thru eight;
Psalm Ninety-eight, verses one thru four;
The Gospel according to John, chapter sixteen, verses sixteen thru twenty.