1974

President Richard Nixon signed legislation requiring states to limit highway speeds to 55 mph as a way of conserving gasoline in the face of an OPEC oil embargo. (The 55 mph limit was effectively phased out in 1987.)

2016

A heavily armed group led by brothers Ammon and Ryan Bundy seized the Malheur National Wildlife Refuge in Oregon, beginning a 41-day standoff to protest the imprisonment of two ranchers convicted of setting fires on public land and to demand the federal government turn over public lands to local control.