Separation Day
June 15, Sunday
Delaware

Historical context
Before 1776, the three counties that make up modern Delaware (New Castle, Kent, and Sussex) were known as the “Lower Counties of Pennsylvania” and were governed by the Pennsylvania governor. However, on June 15, 1776, the Assembly of these counties declared independence from the British Crown and Pennsylvania, thus creating a separate state — Delaware.
Modern celebration
Separation Day is celebrated annually on the second Saturday of June in the historic town of New Castle, where the separation was declared. Celebrations include:
* Friday evening concert with live music, food, and drinks.
* Saturday colonial-style parade through the streets of the town.
* Festival at Battery Park with children’s rides, craft and vintage markets, live music, and fireworks over the Delaware River.
In 2025, the celebration will take place on June 6 and 7.
Significance of the holiday
Separation Day is one of the oldest traditional holidays in Delaware and symbolizes the pursuit of self-government and independence. It unites the state’s residents in celebrating their unique history and cultural heritage.