Appalachian Trail markerAugust 14, 1937: The Appalachian Trail is completed. A 2,175-mile footpath along ridges and over peaks from Springer Mountain, Georgia to Mount Katahdin, Maine, the Trail falls into disrepair during World War II, but it refurbished in the 1950s. At right, an Appalachian Trail marker in Shenandoah National Park.

August 14, 1969: Tropical Storm Camille forms near Jamaica. Three days later, Hurricane Camille brings a 25-foot storm surge into the Mississippi coast. Camille claimed 259 lives, half of them far inland during a week’s worth of heavy rains.

August 14, 1970: The Alyeska Pipeline Services Co. is formed by BP, Humble Oil, Atlantic Richfield, and other future beneficiaries of Alaska’s North Slope oil. Construction of the Trans-Alaska Pipeline is completed in 1977.

Photo: Compass Points Media/Flickr

This feature is compiled by Peter Dykstra, an MNN contributor and publisher of Environmental Health News and The Daily Climate.