Today is the 2nd Sunday of Easter, and is often called Low Sunday - in contrast to last Sunday being such a 'high' feast day.
It's also sometimes called Quasimodo Sunday - named after the opening syllables in Latin for the introit for the day - Quasi modo géniti infántes (As newborn babies). The fictional character Quasimodo is so named because he was found as a new born baby on the steps of Notre Dame cathedral on this Sunday in the church calendar