On Friday the 1st of November we celebrate the feast day of All Saints, this is a Holy Day of obligation when we are expected to attend Mass.
From the first centuries after Christ, Christians who died a martyr’s death were considered saints, who live in God’s presence forever. Every year, on the anniversary of the martyrs’ deaths, Christians would visit their tombs and celebrate the Eucharist. This practice grew throughout the centuries to include remembering other outstanding Christians on the days they died. Soon the entire calendar was filled with memorials of the saints. In the ninth century, Pope Gregory IV designated November 1 as the day to remember all the saints, known and unknown, living in God’s presence.