Construction workers take a lunch break on a steel beam atop the RCA Building at Rockefeller Center, New York, Sept. 29, 1932.  In the background is the Chrysler Building. (AP Photo)

Today in History: September 29

Inside the story: Photos

Today is Thursday, Sept. 29, the 273rd day of 2016. There are 93 days left in the year.

Teachers picket at P.S. 17 during the ìmass resignationsî which closed New York schools on Sept. 28, 1967. (AP Photo/John Duricka)

Today in History: September 28

Inside the story: Photo gallery

Today is Wednesday, Sept. 28, the 272nd day of 2016. There are 94 days left in the year.

The Dalai Lama, exiled political leader of Tibet, flashes the peace symbol during his visit to the Liberty Bell in Philadelphia on Saturday, Sept. 22, 1990. The Dalai Lama was in town to address students at the University of Pennsylvania. (AP Photo)

Today in History: September 22

Today is Thursday, Sept. 22, the 266th day of 2016. There are 100 days left in the year. Autumn arrives at 10:21 a.m. Eastern time.

Dr. Martin Luther King Jr. walks between seven-year-old Eva Gracelemon, left, and 10-year-old Aritha Willis as he escorts black school children to formerly all-white schools in Grenada, Miss., Tuesday morning, Sept. 20, 1966.  Violence erupted at the school last Monday when the schools were integrated. (AP Photo)

Today in History: September 20

Inside the story: Photo gallery

Today is Tuesday, Sept. 20, the 264th day of 2016. There are 102 days left in the year.