Holy Thursday (Songs of Experience) "reduced to misery". The "Holy Thursday" referred to in the poem is Ascension Thursday, which in the Church of England and other parts of the Anglican Communion, can be used a synonym for the same feast; Thomas Pruen uses the term to refer to Ascension Day in his "Illustration of the Liturgy of the Church of England", published in 1820; however use of the term "Holy Thursday" to mean Ascension Day is rare, and the term is more generally applied by most Christian denominations to Maundy Thursday in Holy Week. On Ascension Day a service was held in St. Paul's
Adoption of the Gregorian calendar 12 days, only 11 were skipped, and the day of the week was repeated on successive days, because at the same time the International Date Line was moved, from following Alaska's eastern border with Canada to following its new western border, now with Russia. Many of the countries of eastern Europe were Eastern Orthodox or Islamic and adopted the Gregorian calendar much later than western Christian countries. Roman Catholic countries such as the Polish–Lithuanian Commonwealth adopted the "new style" (N.S.) Gregorian calendar in 1582 (switched back in 1795 after Third Partition of Poland), but the switch to the Gregorian calendar