Sierra Club Founded: The Birth of Modern Environmentalism
John Muir founded the Sierra Club on May 28, 1892, creating the first large-scale environmental preservation organization to launch a lasting political lobby for green policies. This move established a powerful model where outdoor recreation and mountaineering directly fueled legislative advocacy, shaping modern conservation efforts from Yosemite's trails to national climate strategies.
May 28, 1892
134 years ago
Key Figures & Places
What Else Happened on May 28
The sun went dark mid-battle, and both armies dropped their weapons. Thales of Miletus had predicted it—the first recorded solar eclipse forecast in history, Ma…
Li Shimin had 3,500 cavalry. Dou Jiande brought 100,000 men to Hulao Pass in Henan. The numbers didn't matter. Shimin's father had just founded the Tang Dynasty…
They murdered the inquisitors in their sleep. William Arnaud and eleven companions were hunting heretics in Languedoc when Cathars stormed their lodgings at Avi…
They called it "everlasting." James IV of Scotland married Margaret Tudor in 1503, her father Henry VII footing the bill for a wedding that cost more than Scotl…
Cranmer didn't even have the authority yet—his papal bulls confirming him as Archbishop wouldn't arrive for another two months. But Henry needed this marriage l…
The Spanish Armada shattered against English fireships and North Atlantic storms, sinking over a third of its 130 vessels and compelling Philip II to abandon hi…
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