This is the timeline of Hersheypark. To simplify the list into shorter pages, I have organized this main timeline page into a list of decades so all you have to do is click on the links below for each decade.

1903-1910: The First Years of Hersheypark

1911-1920: Growth and The Great War

1921-1930: Reorganization

1931-1940: Great Depression

1941-1950: World War II and Postwar America

1951-1960: Stagnation

1961-1970: Attempts at Growth

1971-1980: Modern Times

1981-1990: Trying Times

1991-2000: Expansive Growth

2001-2010: The New Century

2011-2016: Something Old & Something New

Seasonal events