| 10/14/1644 |
William Penn Born |
| 07/03/1754 |
George Washington capitulated at Fort Necessity |
| 11/12/1758 |
George Washington nearly killed by friendly fire incident in future Westmoreland County |
| 08/05/1763 |
Battle of Bushy Run |
| 08/06/1763 |
Second day of the Battle of Bushy Run |
| 11/05/1768 |
Treaty of Fort Stanwix signed |
| 08/02/1772 |
Earliest Church Records in County - Harrold's Zion Lutheran Church |
| 02/26/1773 |
Westmoreland County Created |
| 02/26/1773 |
Hanna's Town created by an act of the Penn Proprietary government |
| 04/06/1773 |
First court was convened at Hanna's Town |
| 08/03/1773 |
First lawyer, Francis Dade admitted to Westmoreland County Bar |
| 10/01/1773 |
Westmoreland County's first election |
| 05/16/1775 |
Hanna's Town Resolves |
| 01/06/1777 |
Pennsylvania's 8th Regiment leaves to join Washington in New Jersey |
| 03/28/1781 |
Washington County created from part of Westmoreland County |
| 08/24/1781 |
Lochry's Defeat |
| 07/13/1782 |
Hanna's Town attacked and burned |
| 12/10/1785 |
Newtown, now Greensburg, was selected as the permanent county seat for Westmoreland County. |
| 07/29/1786 |
First newspaper west of the Alleghenies, the Pittsburgh Gazette, was printed. |
| 08/10/1786 |
Second Westmoreland County Courthouse completed |
| 09/19/1786 |
"Newton" renamed "Greensburg," in honor of General Nathanael Greene |
| 01/06/1787 |
Hugh Henry Brackenridge Letter to the Gazette |
| 01/07/1787 |
Court held in Greensburg for the first time. |
| 02/02/1787 |
Arthur St. Clair elected President of Continental Congress. |
| 02/10/1787 |
Rebuttal letter to to Mr. Brackenridge in the Gazette |
| 09/24/1788 |
Allegheny County formed out of part of Westmoreland County |
| 02/14/1789 |
Court House and Jail Authorized |
| 09/23/1789 |
Unity Township formed out of Mount Pleasant Township |
| 09/02/1791 |
Thomas Hamilton named first postmaster of Greensburg |
| 07/26/1794 |
Pittsburgh-Philadelphia mail post rider was robbed near Greensburg by Whiskey Insurgents |
| 09/03/1794 |
Whiskey insurrectionists besiege Drum House in Greensburg |
| 09/11/1794 |
Eighty whiskey insurgents from Greensburg and Hempfield Township granted amnesty |
| 02/09/1799 |
Greensburg incorporated. |
| 02/20/1802 |
Christopher Truby, one of the founders of Greensburg, died. |
| 03/30/1803 |
Indiana County was formed from part of Westmoreland County and Lycoming County. |
| 06/03/1811 |
Greensburg Academy Opened |
| 06/06/1812 |
Greensburg Riflemen volunteered for service in War of 1812 |
| 09/23/1812 |
Greensburg Rifle Company left to join William H. Harrison |
| 10/09/1813 |
County-wide celebration and light-up night held for Perry's victory on Lake Erie. |
| 08/31/1818 |
Arthur St. Clair died |
| 02/07/1821 |
William Jack died. He was sheriff in 1772 when Hanna's Town was attacked. He was also one of three donors of the Courthouse property. |
| 03/18/1845 |
Johnny Appleseed (born John Chapman in 1774) died on March 18, 1845 |
| 04/20/1852 |
Justice Richard Coulter dies in Greensburg |
| 10/24/1854 |
Cornerstone for Westmoreland County's fourth courthouse was laid. |
| 02/23/1855 |
Penn Township incorporated. |
| 02/24/1863 |
A soldier writes home to his mother in Sardis, Westmoreland Co, Penna from Camp Humphrey Virginia near Falmouth |
| 03/13/1863 |
Duncan McCutchen of Co. E., Pa. Volunteers at Camp Humphrey, Falmouth VA, writes to his mother . . . |
| 11/26/1863 |
Bolivar incorporated. |
| 11/14/1864 |
Irwin incorporated. |
| 08/20/1867 |
Donegal incorporated |
| 09/01/1869 |
New Florence incorporated |
| 02/05/1874 |
Scottdale incorporated. |
| 10/03/1876 |
Madison incorporated |
| 08/07/1882 |
Seton Hill College founded |
| 01/10/1887 |
Latrobe Electric Light Company incorporated. One of its founders was A.W. Mellon. |
| 11/15/1890 |
Southwest Greensburg incorporated. |
| 11/26/1892 |
New Kensington incorporated. |
| 01/22/1895 |
Westmoreland Hospital Association founded. |
| 11/11/1895 |
Arona incorporated. |
| 11/16/1895 |
Arnold incorporated. |
| 01/30/1897 |
Building of the present Courthouse (Westmoreland's fifth) authorized by the Court. |
| 11/10/1902 |
Youngwood incorporated. |
| 08/29/1904 |
Trafford incorporated |
| 01/31/1908 |
Present Courthouse dedicated. |
| 03/10/1908 |
Congressman John H. Dent was born in Johnetta, PA. |
| 12/23/1908 |
The Westmoreland County Historical Society was founded. |
| 03/09/1910 |
Westmoreland County Coal Strike of 1910-1911 |
| 11/11/1911 |
Export incorporated. |
| 04/14/1912 |
Young Greensburg Woman Survives Titanic Disaster |
| 07/05/1912 |
Collision on the Ligonier Valley Railroad near Ligonier, PA |
| 04/13/1915 |
The famous Rattlesnake flag was transferred today from the vaults of the Merchants' and Farmers' Bank in Greensburg to the State LIbrary, at Harrisburg, to take a place among the rare relics of American wars. |
| 07/15/1917 |
10th Infantry Regiment called up for World War I |
| 06/03/1918 |
Seton HIll authorized to confer degrees. |
| 10/07/1918 |
Greensburg suffers its first death from the great flu epidemic. |
| 11/20/1922 |
Boiler Firemen Strike |
| 09/01/1932 |
First Sears store in Westmoreland County opens in downtown Greensburg |
| 10/09/1934 |
First running of Rolling Rock Steeplechase Races |
| 03/17/1936 |
The Great St. Patrick's Day Flood submerges the town of Livermore under 18 feet of water. |
| 05/21/1937 |
Eleanor Roosevelt Visited Norvelt |
| 02/17/1941 |
110th Infantry Regiment called up for service in WW II. |
| 12/07/1949 |
Greensburg Coliseum destroyed by fire. |
| 11/24/1950 |
Record-breaking snow fall |
| 03/10/1951 |
Diocese of Greensburg is erected |
| 08/31/1952 |
Last run of the Ligonier Valley Rail Road |
| 10/03/1955 |
First combined issue of Tribune-Review |
| 09/02/1958 |
Penn State opens the New Kensington Campus |
| 09/26/1958 |
President Eisenhower seals the "Century Chain" at Fort Ligonier |
| 01/28/1963 |
Devastating fire at St.Vincent College in Latrobe |
| 09/26/1968 |
Plans announced for new Chrysler plant near New Stanton |
| 09/18/1969 |
Westmoreland County acquires Old Hanna's Town site |
| 09/18/1969 |
Historic Hanna's Town acquired by Westmoreland County |
| 05/08/1970 |
Westmoreland County Community College founded. |
| 07/15/1994 |
President Clinton speaks on Main Street in Greensburg. |
