This hard hat was worn by Dennis Quinn, an iron worker from Chicago, Illinois, who came to New York to help clear the debris of the World Trade Center after September 11.

The Pentagon Memorial Fund’s Web site offers an interactive map of the memorial, a video and other information about events on 9/11 both at and beyond the Pentagon, a space to read and share personal stories, and links to related organizations.

This guide from the National September 11 Memorial and Museum offers suggestions for teachers on how to prepare for and structure conversations about 9/11 with students of all ages.

This site from the National September 11 Memorial and Museum provides links to all of the educational materials from the museum, including commemorative materials for students in upper elementary grades through high school, which focus on ways people chose to respond to 9/11 through art; two shor

This buckskin coat was worn by Custer when he was Lieutenant Colonel with the 7th U. S. Cavalry in the Dakotas. It was one of several owned and worn by Custer, who prefered to dress like a frontiersman while out West. In 1912, Custer's widow, Elizabeth, donated this buckskin coat t

Have students document the national response to the terrorist attacks on the United States on September 11, 2001 using polls, comment cards from teenagers, and their own recollections. This lesson plan (which includes background information and full-color primary sources) was produced to accompan

In the early days of electronic computers, memory was not as efficient or inexpensive as it is today. To save memory space, programs stored as few digits as possible for dates. In COBOL, for instance, January 1, 1999, was stored as 010199. As Year 2000, or Y2K for short, approached, it became app

This online exhibition commemorates the tragic events of September 11, 2001. It includes highlights of the exhibition that was on display at the Museum from September 11, 2002 until July 6, 2003, including selected objects, photographs, personal stories and video. Students can also search over 10

The September 11 Digital Archive uses electronic media to collect, preserve, and present the history of September 11, 2001 and its aftermath. The Archive contains more than 150,000 digital items, a tally that includes more than 40,000 emails and other electronic communications, more than 40,000 f

Though anchored in local Roman Catholic traditions, many of the religious beliefs and symbols of Mexican Americans have roots in indigenous notions about the soul and our universe. Between October 31st and November 2nd, Día de los Muertos, or Day of the Dead, is celebrated with family, decoratin