The Pagan Book of Days for Tomorrow, Thursday, April 21st
Parilia/Earth Day/Egyptian Day
The festival of the Roman pastoral deity, Pales, known as the Parilia, included decorating sheepfolds with green branches, kindling fires, through whose smoke the animals were driven; and offering milk and cakes to the divinity. In more recent times, it has become Earth Day, when people remember their responsibility toward the environment.
Source
The Pagan Book of Days
Nigel Pennick
Witches Of The Craft® 