1. Flag Day: June 14th is the anniversary of the adoption of the United States flag in 1777. It is also known as Flag Day.

2. Revolutionary War: During the Revolutionary War, the Battle of Fort Mercer took place on October 22, 1777, and involved British and Hessian troops attacking a fort held by American soldiers. The fort was eventually destroyed, but the soldiers held strong, and the battle was considered a victory for the American army.

3. Statehood Day: June 14th is also recognized as Statehood Day in New Jersey, as it was on this day in 1776 that the state became the third-to-last colony to approve the Declaration of Independence.

4. Princeton University: On June 14, 1756, Princeton University was founded as the College of New Jersey in Elizabeth, New Jersey. It later moved to Princeton, New Jersey in 1896.

5. Landing of Henry Hudson: In 1609, English explorer Henry Hudson landed on the shores of what is now Jersey City, New Jersey while searching for a passage to Asia. This event would eventually lead to the founding of the New Netherland colony, which included parts of what is now New Jersey, New York, and Delaware.