Parisians walk on the street past lottery and vermouth advertisements in 1935.Photograph by Maynard Owen Williams, National Geographic

Parisians walk on the street past lottery and vermouth advertisements in 1935.
Photograph by Maynard Owen Williams, National Geographic

Navy pilots test their steadiness and muscular coordination in Corpus Christi, Texas.Photograph by the U.S. Navy

Navy pilots test their steadiness and muscular coordination in Corpus Christi, Texas.
Photograph by the U.S. Navy

Two boys fishing in Connecticut.Photograph by B. Anthony Stewart, National Geographic

Two boys fishing in Connecticut.
Photograph by B. Anthony Stewart, National Geographic

Bathing beauties emerge from a “solarium” (a tanning booth), in St. Petersburg, Florida, June 1929.Photograph by Clifton R. Adams, National Geographic

Bathing beauties emerge from a “solarium” (a tanning booth), in St. Petersburg, Florida, June 1929.
Photograph by Clifton R. Adams, National Geographic

A close view of a male lion photographed with a flashlight at night in Africa, May 1910.Photograph by A. Dugmore, National Geographic

A close view of a male lion photographed with a flashlight at night in Africa, May 1910.
Photograph by A. Dugmore, National Geographic

A hunter among dozens of Pacific walrus heads, killed for their tusks, Bering Sea, March 1911.Photograph by Beverly B. Dobbs, National Geographic

A hunter among dozens of Pacific walrus heads, killed for their tusks, Bering Sea, March 1911.
Photograph by Beverly B. Dobbs, National Geographic

Men dry betel nuts in George Town, Malaysia, 1938.Photograph by Maynard Owen Williams, National Geographic

Men dry betel nuts in George Town, Malaysia, 1938.
Photograph by Maynard Owen Williams, National Geographic

Race cars roar around the track at the Iowa State Fair in 1938.Photograph by J. Baylor Roberts, National Geographic

Race cars roar around the track at the Iowa State Fair in 1938.
Photograph by J. Baylor Roberts, National Geographic

The National Symphony Orchestra performs on the Potomac River, March 1942.Photograph by J. Baylor Roberts, National Geographic

The National Symphony Orchestra performs on the Potomac River, March 1942.
Photograph by J. Baylor Roberts, National Geographic

Swimming lessons are part of these undergraduates’ curriculum at Tulane University in New Orleans, April 1930.Photograph by Edwin L. Wisherd, National Geographic

Swimming lessons are part of these undergraduates’ curriculum at Tulane University in New Orleans, April 1930.
Photograph by Edwin L. Wisherd, National Geographic

Leaping skills make Doberman pinschers into great “police dogs.” Rushville, Indiana, December 1941.Photograph by Willard Culver, National Geographic

Leaping skills make Doberman pinschers into great “police dogs.” Rushville, Indiana, December 1941.
Photograph by Willard Culver, National Geographic

Rear Admiral Robert E. Peary dressed in the fur clothing he wore for the Arctic expedition, September 1938.Photograph by Robert E. Peary, National Geographic

Rear Admiral Robert E. Peary dressed in the fur clothing he wore for the Arctic expedition, September 1938.
Photograph by Robert E. Peary, National Geographic

A woman stands before limestone cliffs in the Gaspe Peninsula, Quebec, September 1934.Photograph by B. Anthony Stewart, National Geographic

A woman stands before limestone cliffs in the Gaspe Peninsula, Quebec, September 1934.
Photograph by B. Anthony Stewart, National Geographic

A herd of aligned giraffes walk across savanna grass in Africa, May 1910.Photograph by A. Dugmore, National Geographic

A herd of aligned giraffes walk across savanna grass in Africa, May 1910.Photograph by A. Dugmore, National Geographic

Vendors and pedestrians along a steep staircase in Hong Kong, November 1934.Photograph by W. Robert Moore, National Geographic

Vendors and pedestrians along a steep staircase in Hong Kong, November 1934.Photograph by W. Robert Moore, National Geographic