Why does the Church have years dedicated to specific topics?
The Church observes the passage of time through the liturgical calendar—which includes feasts such as Easter and Christmas, and seasons such as Lent and Advent. In addition, however, popes can set aside time for the Church to reflect more deeply on a specific aspect of Catholic teaching or belief. Past years designated by recent popes include a Year of Faith, Year of the Eucharist, and Jubilee Year of Mercy.
Why did the Pope declare a year of St Joseph?