
May 28 - Sierra Club Founded
The Sierra Club is the oldest and largest grassroots environmental organization in the United States. It was founded on May 28, 1892 in San Francisco, California by the well-known conservationist and preservationist John Muir, who became its first president. The Sierra Club has hundreds of thousands of members in chapters located throughout the US, and is affiliated with Sierra Club Canada.
The Sierra Club's mission is: To explore, enjoy, and protect the wild places of the earth; To practice and promote the responsible use of the earth's ecosystems and resources; To educate and enlist humanity to protect and restore the quality of the natural and human environment; and to use all lawful means to carry out these objectives.

May 28 - The Slugs Return From Capistrano Day
It’s a little known secret that slimy slugs spend their winters in lovely Capistrano, and return to the patios and gardens in Capistrano on this date. Bare feet are not a good idea.