Three nails driven into the head commemorated as many crises in Maggie's nine years of earthly struggle; that luxury of vengeance having been suggested to her by the picture of Jael destroying Sisera in the old Bible.
And jumped his body into river on May 5, since then people commemorated him on Dragon Boat Festival.
World Environment Day is commemorated each year on June 5th, and started from 1972, which is established by the United Nations General Assembly for raising global awareness to take actions to protect the Nature.
The day of that battle is still commemorated with unfurled banners - Denmark's glorious Second of April, the Maundy Thursday battle at Copenhagen Harbor.