As an AI language model, I don't have personal opinions or beliefs, and I cannot guarantee the absolute accuracy of the facts presented. However, here are 5 interesting facts about October 27 in New Jersey history:

1. On October 27, 1787, the New Jersey State Legislature ratified the U.S. Constitution. This made New Jersey the third state to officially enter the newly formed United States of America.

2. In 1904, the first intercity electric street railway in the world was opened between Trenton and New Brunswick, New Jersey. The line was operated by the Public Service Railway Company and ran on October 27 for the first time.

3. On October 27, 1914, the first automobile tunnel under the Hudson River officially opened, connecting Jersey City, New Jersey with Manhattan, New York. The Holland Tunnel, named after its chief engineer, Clifford M. Holland, provided a much-needed transportation link between the two cities for commuters and businesses alike.

4. In 1965, the New York Giants football team played their first game in the newly-built Giants Stadium in East Rutherford, New Jersey. The stadium, which cost $78 million to build, was home to the Giants for 33 seasons until it was replaced by MetLife Stadium in 2010.

5. On October 27, 2012, Hurricane Sandy hit the New Jersey coastline, causing widespread damage and destruction. The storm, which was a Category 2 hurricane, caused billions of dollars in damage, knocked out power to millions of people, and resulted in the deaths of over 30 individuals in New Jersey alone. The storm is considered one of the costliest and most devastating storms in U.S. history.