Friday, June 18th
On this date in 1868, the Navajos left their exile at Fort Sumner, New Mexico, and began their return journey to Arizona.
On this date in 1879, the first ice plant in Arizona went into production. S.D. Lount established his factory in Phoenix with a five-horsepower engine capable of producing 1,000 pounds (454 kilograms) of ice per day. He made his deliveries on a homemade wheelbarrow.
On this date in 1882, the Rev. Endicott Peabody held the first service in St. Paul’s Episcopal Church, the first Episcopal church in the territory.
On this date in 1913, the temperature hit 100 degrees for the first time that year, marking the latest day to ever hit 100 degrees.
On this date in 1986, a twin-engine aircraft and a helicopter on sightseeing tours of the Grand Canyon collided, killing all 25 people on both aircraft.