1910 January
Population: Pittsburgh, 553,905; Allegheny County, 1,018,463.

1910 January
U. S. Bureau of Mines established a center in Oakland District.

1910 January
Annual clearings of the Pittsburgh Clearing House amounted to $2,587,325,785.

1910 January
New 215-bed Homeopathic Hospital opened at Center and Aiken avenues. Assessed valuation of real estate in the city rose to $745,700,000.

1910 January
A. W. and R. B. Mellon announced that they were providing funds for creation of Mellon Institute for Industrial Research.

1910 January
The Pittsburgh Courier was published for the first time.

1910 January
John Kowalski, marine engine maker, recorded the first flight of an airplane built in Pittsburgh when he accidentally took off in a four-cylinder plane he had devised.

1910 January
Because of lack of funds, the Pittsburgh Symphony Orchestra was disbanded.

1910 January 23
Three were dead and communications and streetcar service disrupted in a nine-inch snowfall.

1910 April 1
The new Henry W. Oliver Building, 25 floors high, was ready for occupancy.

1910 October 9
Soldiers and Sailors Memorial Hall was dedicated.

Courtesy of the Historical Society of Western Pennsylvania

1911 January
The Pittsburgh Industrial Development Commission was organized by the Chamber of Commerce for the purpose of securing diversified industries for Pittsburgh; it received contributions of $136,473 to begin work. The Jenkins Arcade was erected on Liberty Avenue.

1911 January 1
The first old age retirement plan for United States Steel employees was created with a fund of $12,000,000. of which $4,000,000 had been provided by Andrew Carnegie ten years before.

1911 January 19
The Elizabeth Steel Magee Hospital, founded by Christopher L. Magee, began operation.

1911 February 2
New St. Joseph's Hospital was opened to the public.