This Day in History for December 7 — Attack on Pearl Harbor, and More

Here’s a look at some interesting events that took place on this day in history:

1787: Delaware becomes the first state to ratify the United States Constitution (more info)

1941: In an early-morning sneak attack, Japanese warplanes bomb the U.S. naval base at Oahu Island's Pearl Harbor, causing the United States to enter World War II (more info)

1963: Instant replay is used for the first time during an Army-Navy game by its inventor, director Tony Verna (more info)

1988: An earthquake in Armenia measuring 6.9 on the Richter scale kills and injures tens of thousands and leaves another 500,000 homeless (more info)

1999: The Recording Industry Association of America files a lawsuit against the Napster file-sharing client alleging copyright infringement (more info)