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Pennsylvania was the site of the deadliest nuclear accident in U.S. history. In 1979, a partial meltdown occurred at the Three Mile Island nuclear power plant in Harrisburg, Pennsylvania.
Lebanon County, Pennsylvania has a rich and diverse history that dates back to pre-colonial times. Before European settlement, the region was home to Native American tribes such as the Susquehannocks and the Lenape. The first European settlers arrived in the early 18th century, with Swiss and German immigrants being the predominant groups. In 1813, Lebanon County was officially established, named after the biblical city of Lebanon.

During the American Revolutionary War, Lebanon County played a significant role, contributing soldiers to fight against British rule. The county's location along the path of march between Philadelphia and the Susquehanna River made it a strategic location during the war. Following the war, Lebanon County experienced rapid development and growth, with industries such as iron furnaces, mills, and textile factories driving its economy.

In the 19th century, Lebanon County became known for its agricultural production, particularly in tobacco and wheat. By the mid-1800s, the Lebanon Valley Railroad was established, connecting the county to neighboring cities and greatly facilitating trade and transportation. This led to further industrial and economic development, as well as an influx of immigrants from various European countries.

During the 20th century, Lebanon County continued to thrive as an agricultural and industrial hub. However, like many other regions in the United States, the county faced economic challenges and population decline in the latter half of the century. Today, Lebanon County remains a vibrant community with a mix of rural and suburban areas, known for its rich history, scenic beauty, and strong sense of community pride.

This timeline provides a concise overview of the key events in the history of Lebanon County, Pennsylvania.

  • 1736 - Lebanon County was settled by European colonists.
  • 1783 - Lebanon County was officially formed as a county in Pennsylvania.
  • 1805 - The Lebanon Valley Turnpike was completed, connecting the county to other regions.
  • 1863 - During the American Civil War, Lebanon County provided soldiers to the Union Army.
  • 1870 - Lebanon County experienced significant industrial growth, particularly in the iron and steel industries.
  • 1930s - The famous Indiantown Gap Military Reservation was established in the county.
  • 1979 - The TMI (Three Mile Island) nuclear accident occurred near Middletown, impacting the surrounding area.
  • 2000s - Lebanon County has continued to grow and diversify its economy, focusing on healthcare, manufacturing, and agriculture.