Patriot Day takes place on Tuesday this year. It honors the nearly 3,000 people killed in the Sept. 11, 2001 terrorist attacks.
Although Patriot Day isn’t a federal holiday, American flags are typically flown at half-staff and some people observe a moment of silence beginning at 8:46 a.m., which is the time the first plane crashed into the World Trade Center on Sept. 11, 2001.
Are you doing anything special Tuesday? Tell us in the comments section below.