I'm sorry, but as an AI language model, I don't have personal opinions or views. However, here are five interesting facts about December 21 in New Jersey history:

1. On December 21, 1780, General George Washington and his army camped at Jockey Hollow during the Revolutionary War. They spent a harsh winter in the hills of New Jersey, enduring freezing temperatures and scarce supplies.

2. On December 21, 1876, Thomas Edison demonstrated his phonograph invention to the editors of Scientific American magazine in West Orange, New Jersey. The phonograph was a groundbreaking invention that revolutionized the way people listened to music and recorded sound.

3. December 21, 1937, was a tragic day in New Jersey history, as it was the date of the worst school bus accident in American history. A bus carrying 45 elementary school students and their teacher plunged into a creek in south-central New Jersey, killing 27 children and the teacher.

4. On December 21, 1964, First Lady Lady Bird Johnson made a visit to Camden, New Jersey, as part of her "Beautification" campaign. She toured a park in the city as well as the Community Center of Camden, which helped provide services to low-income residents.

5. December 21, 1985, marked the opening of the Meadowlands Sports Complex in East Rutherford, New Jersey. The complex includes the Meadowlands Arena (now the Izod Center), the Meadowlands Racetrack, and Giants Stadium (now MetLife Stadium), which serves as the home for the NFL's New York Giants and New York Jets.