The drying of the massive lake exposed playas that became the setting for feats of engineering and technological ingenuity, as well as epic tales of exploration and desperation.
Over the last decade, wildfires have worsened ground-level ozone pollution across much of the contiguous United States, creating unhealthy air far from active flames.
In a precursor to Memorial Day, people in Charleston, South Carolina, honored fallen Civil War troops with flowers, songs, and marches at an event at a racetrack on May 1, 1865.