History
9/11 Terrorist Attack Explained
Learn what happened during the September 11 attacks, who carried them out, why they occurred, and how 9/11 changed the United States.
History
Learn what happened during the September 11 attacks, who carried them out, why they occurred, and how 9/11 changed the United States.
Holiday
Learn why Labor Day is celebrated, how the labor movement shaped the holiday, and why Americans observe it on the first Monday of September.
History
Learn how the American Revolution led to the U.S. Constitution with a simple timeline explaining the events that shaped the nation.