1930 January 0
Population: 669,817.

1930 January 0
KDKA announced the erection of a powerful transmitter at Saxonburg.

1930 January 3
The United States purchased land for a new Post Office Building.

1930 January 12
Pittsburgh taxi drivers held a mass meeting at Duquesne Gardens to begin a strike against the Green and Yellow Cab companies in protest against what they claimed was a pay cut.

1930 January 28
United States Steel reported record peacetime profits of $197,531,349.

1930 February 14
Police used tear-gas bombs to disperse a crowd on Center Avenue; two cabs were burned and 10 persons arrested as taxi strike violence continued.

1930 April 16
The cornerstone was laid for the new $2,700,000 county office building at Ross and Diamond Streets.

1930 July 9
Jones and Laughlin announced a $20,000,000 expansion program for its plants in Pittsburgh and Aliquippa.

1930 July 10
The Better Traffic Committee recommended a ban on all Downtown curb parking; it also urged Mayor Charles H. Kline to eliminate the practice of "fixing" traffic tags.

1930 July 11
The Baltimore and Ohio Railroad applied for a federal permit to build a river-rail terminal on the Monongahela River.

1930 August 27
Sara Soffel was sworn in by Judge Richard Kennedy as judge of County Court, the first woman jurist in Pennsylvania.

1930 September 18
Chamber of Commerce recommended to the United States Census Bureau a Greater Pittsburgh metropolitan area with 4043 square miles in 13 counties of Pennsylvania, Ohio, and West Virginia with a population of 2,203,000.

1930 September 0
Construction work started on the $6,000,000 Mellon Institute building at Fifth and Bellefield.

1930 October 2
Rear Admiral Richard E. Byrd addressed 3000 at Syria Mosque during National Safety Congress here.

1930 October 12
Eucharistic Congress was held in Forbes Field.