Christian feast day: John Muir (Episcopal Church)

John Muir, also known as "John of the Mountains" and "Father of the National Parks", was a Scottish-born American naturalist, author, environmental philosopher, botanist, zoologist, glaciologist, and early advocate for the preservation of wilderness in the United States.

The Episcopal Church (TEC), also known as the Protestant Episcopal Church in the United States of America (PECUSA), is a member of the worldwide Anglican Communion, based in the United States. It is a mainline Protestant denomination and is divided into nine provinces. The current presiding bishop of the Episcopal Church is Sean W. Rowe.