1. On June 24, 1664, King Charles II granted a land charter to his brother, James, the Duke of York, which included present-day New Jersey. This led to the establishment of New Jersey as a British colony.

2. In 1778, during the American Revolutionary War, British and Hessian soldiers attacked the town of Springfield, New Jersey. However, they were repelled by American forces, which included troops from New Jersey and other states.

3. On June 24, 1916, the first keystone of the Delaware River Bridge (now known as the Benjamin Franklin Bridge) was laid in Camden, New Jersey. The bridge, which spans the Delaware River and connects Philadelphia, Pennsylvania, and Camden, New Jersey, opened to traffic on July 1, 1926.

4. The New Jersey Hall of Fame induction ceremony, which recognizes notable New Jerseyans in various fields, has often been held on June 24. In 2012, musician Bruce Springsteen was among the inductees, while in 2019, the ceremony featured the likes of astronaut Mark Kelly and comedian Jon Stewart.

5. On June 24, 2019, New Jersey Governor Phil Murphy signed a bill that legalized recreational marijuana for adults ages 21 and over. The move made New Jersey the 13th state to legalize the recreational use of marijuana.