1882: President Chester A. Arthur warns Arizona that he would place it under martial law unless it shows more respect for law and order. The warning was directed chiefly at Cochise County.

1887: The first recorded earthquark hits Tucson. Tucson had a genuine earthquake yesterday," read the one-paragraph account on page 2 of the next day's Arizona Daily Star. It must have shook the old Santa Catalinas, from the great clouds of dust which arose over parts of its crest.

"Ed Ronstadt, whose mother, the former Lupe Dalton, was 5 years old in 1887, remembers his mother telling him years later about the earthquake in Tucson. She remembered seeing a maid go into the living room from the kitchen carrying a jug of water on her head. The floor kind of shook and the jug of water fell and busted into pieces."

The only recorded structural damage in Tucson from the quake of '87 was an adobe wall that toppled at San Xavier.

Centered about 200 miles southeast of Tucson near Bavispe, Mexico, the earthquake happened some 13 years before the Richter scale was introduced. Later estimates rate the quake at a 7.2.

1910: Harold Steinfeld, born and educated in Tucson, is made assistant general manager of Macy's Department Store in New York.

1913: Two motorcycles set a speed record for the Tucson-Nogales run. Their total time was three hours and five minutes.

1975: The Tucson Museum of Art is dedicated.

Want to share an important event from Tucson's history? Email it to krumore@azstarnet.com.