| 1913 | November 30 | First concert by Erie Symphony Orchestra, conducted by Franz Kohler, at Colonial Theatre on Peach St. before audience of 750. |
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| 1914 | April 19 | First concert at Park Theatre on Perry Square, featuring world premiere performance of the Henry Vincent "Suite." |
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| 1916 | February 20 | Final concert of the Erie Symphony Orchestra |
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| 1921 | January 30 | First concert of the re-organized Erie Second Symphony Orchestra, conducted by Henry Vincent at Academy High School. |
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| 1921 | February 8 | First concert of the First Philharmonic, conducted by Eugene Haesener at the Central Presbyterian Church, Corner of 10th and Sassafrass St. |
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| 1922 | December 10 | Erie Battalion offers to broadcast symphony concerts by radiophone over its transmitting station WOAV. |
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| 1926 | May 2 | Final performance of the Second Symphony Orchestra |
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| 1932 | February 7 | First concert by the Second Philharmonic conducted by John Metcalf at Strong Vincent High School. |
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| 1937 | January 12 | Premiere performance in Erie of Rimsky-Korsakov symphonic suite "Scheherazade." |
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| 1941 | November 6 | Erie Philharmonic disbanded for duration of World War II. |
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| 1947 | September 23 | Erie Philharmonic Incorporated |
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| 1948 | April 5 | Western Hemisphere premiere performance of the Serge Prokofiev "Symphonic Suite, 1941." |
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| 1948 | April 19 | First "Pops" concert. |
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| 1949 | December 6 | Western Hemisphere premiere performance of the Gustav Mahler "Symphony No. 10 (Unfinished)." |
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| 1953 | December 8 | First annual symphonic performance of Handel's "Messiah," with recently organized Erie Philharmonic Chorus. |
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| 1956 | April 25 | First public appearance of the Erie Junior Philharmonic |
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| 1958 | October 21 | First concert at Technical Memorial High School |
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| 1963 | October 22 | Philharmonic launches 50th anniversary season, playing the first of six commissioned works. |
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| 1967 | October 16 | John Gosling conducts his first Opening Night Concert |
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| 1968 | January 18 | First out-of-town performance by Philharmonic at Allegheny College |
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| 1973 | October 17 | Debut of conductor Harold Bauer with Philharmonic |
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| 1974 | October 8 | First concert at the Warner Theatre |
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| 1976 | October 5 | Walter Hendl makes his debut as orchestral director of Erie Philharmonic |
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| 1977 | November 10 | First D'Angelo Young Artists Competition winner plays with the orchestra |
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| 1989 | November 11 | World premier performance of Albert Glinsky's "A Throne of the Third Heaven." |
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| 1990 | September 22 | Opening Night with Eiji Oue conducting his first concert as the Philharmonic's Music Director |
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| 1993 | February 13 | Premiere performance in Erie of the Libby Larsen "Marimba Concerto: After Hampton." |
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| 1993 | March 13 | World premiere performance of the Albert Glinsky "Concerto for Piano and Orchestra." |
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| 1996 | April 13 | Peter Bay conducted his first concert with the Erie Philharmonic |
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| 2000 | July 1 | Hugh Keelan is named Music Director and Conductor of the Erie Philharmonic |
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| 2007 | September 27 | Daniel Meyer makes his debut as Conductor and Music Director of the Erie Philharmonic |
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