1. The Battle of Trenton: On May 23, 1777, the Battle of Trenton took place in Trenton, NJ. This battle was a crucial turning point in the American Revolution, as it resulted in a much-needed victory for General George Washington and his troops. They captured nearly 1,000 Hessians and boosted morale among American soldiers.

2. New Jersey Statehood: May 23, 1788, marked a significant moment in New Jersey history, as it was the day the state officially ratified the United States Constitution and became the third state to do so. This Constitution remains the supreme law of the land to this day.

3. Civil Rights Movement: On May 23, 1964, Martin Luther King Jr. and other civil rights leaders were arrested in St. Augustine, Florida, for protesting segregation in public accommodations. This event helped bring attention to pressing civil rights issues across the United States, including New Jersey.

4. World War II: May 23, 1943, saw the successful launch of the Liberty ship S.S. Arthur M. Huddle by the New Jersey-based shipbuilding company New York Shipbuilding. This ship, like many others constructed in the state during the war, played a significant role in supporting the troops and maintaining supply lines overseas.

5. The Garden State Parkway: On May 23, 1957, the Garden State Parkway officially opened, connecting top destinations in New Jersey such as Atlantic City and the Jersey Shore. This 172.4-mile toll road remains an important thoroughfare in the state today, facilitating transportation and commerce.