From Washington: A new Ipsos poll reveals that the attacks on Sept. 11, 2001, remain a significant historic event in the lives of many Americans. Twenty-five years after the incident, about half of U.S. adults still recall it as an important event.

The poll asked participants to name the most important historic events in an open-ended question. Results show that the 9/11 attacks are among the most frequently mentioned events.

Further information about the poll and its findings can be found through the source. The attacks on Sept. 11, 2001, continue to be remembered as a pivotal moment in American history.