1) In 1937, a major dust storm known as "Black Sunday" swept through the state, causing massive damage to homes, crops, and infrastructure. It was one of the worst dust storms in the state's history.

2) On May 27, 1953, the world's first exclusively solar-powered device was invented in Arizona. The device, a radio transmitter, was powered by a solar cell that converted sunlight into electrical energy.

3) The first McDonald's restaurant in Arizona opened its doors on May 27, 1953. The fast food chain has since become a ubiquitous presence in the state, with hundreds of locations throughout Arizona.

4) In 1996, the Phoenix Suns basketball team reached the NBA Finals for the second time in franchise history on May 27. The team ultimately lost in six games to the Chicago Bulls, but the run to the finals was a major accomplishment for the Suns and their fans.

5) On May 27, 2017, a major wildfire broke out in the mountains near Prescott, Arizona. The fire, known as the Goodwin Fire, eventually burned over 28,000 acres of land and destroyed dozens of homes and buildings. It was one of the most devastating wildfires in the state's recent history.