35 Years of People

1974 to Now: PEOPLE's Biggest Stories

Celebrate our 35th anniversary with the newsmakers (Princess Diana! President Obama!) who shocked, moved and warmed the hearts of readers over the years


On the morning of Sept. 11, four U.S. planes hijacked by terrorists crash into the World Trade Center, the Pentagon and a field in Pennsylvania killing nearly 3,000 people. The attacks go down as the worst act of terrorism in the U.S. – and changes the course of national security forever.

Read the full story in PEOPLE's Archive.