Mesa Verde National ParkJune 29, 1906: Mesa Verde National Park is established in southwestern Colorado. After reports of vandalism at the sites of spectacular ruins of ancient Anasazi pueblo structures (at right), U.S. President Theodore Roosevelt ordered the creation of a park to protect Mesa Verde.

June 29, 1938: Olympic National Park in Washington state is created. The park features rocky Pacific beaches, temperate rain forest, and rugged, glaciated mountains.

June 29, 1973: U.S. President Richard M. Nixon delivers a national address to outline steps to deal with the energy crisis, including the creation of a panel to reduce energy use.

June 29, 2012:  In a summer marked by abnormal numbers of severe weather outbreaks, a “Derecho” storm races from the US Midwest to the East Coast, slamming much of the nation with high winds, torrential rains, and thunderstorms.  Some Washington DC area residents lose electric power for a full week.

Photo: Ken Lund/Flickr

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