All Saints' Say occurs on the same day as the Mexican "Dide los Innocentes" a day dedicated to deceased children.
Across much of Europe, the day is commemorated with offerings of flowers left on the graves of the dead.
Many of these practices blur the distinction between All Saints' Day and All Souls' Day.
These celebrations often blur the distinction between All Saints' Day, which is properly dedicated to those who are in heaven, and All Souls' Day, on which prayers are offered for all those who have died, but have not yet reached heaven.
All Saints' Day was formally started by Pope Boniface IV, who consecrated the Pantheon at Rome to the Virgin Mary and all the Martyrs on May 13 in 609 AD.
Boniface IV also established All Souls' Day, which follows All Saints.
Instead, the day has been used to commemorate those who have recently died, usually in the past year, and to remember the examples of those who lived holy lives.