A line of soldiers firing handguns during a training session, circa 1920. (Photo by Keystone). P.S. All pictures are presented in high resolution.

Dogs are seen at the 2021 Pawlidays celebration at Sofitel Hotel Los Angeles on December 18, 2021 in Los Angeles, California. (Photo by Emma McIntyre/Getty Images)

The Canton Tower and skyscrapers are illuminated during a rehearsal for the 2023 Guangzhou International Light Festival on November 20, 2023 in Guangzhou, Guangdong Province of China. The 12th Guangzhou International Light Festival will be held from November 21 to 30. (Photo by Wu Wenjun/VCG via Getty Images)

The new 2011 Volkswagen Passant Variant (L) and new Golf Cabrio are lifted into one of two storage towers at the Autostadt customer reception center at the Volkswagen factory on the day of the German automaker's annual press conference on March 10, 2011 in Wolfsburg, Germany. (Photo by Sean Gallup/Getty Images)

Leilani Franco has made it into the Guinness Book of World Records for the fastest human backbend walk, traveling in a backbend position a distance of 20 meters (65 ft 7.2 in) in a time of 10.05 seconds. (Photo by PA Wire)

Ocean Rebellion activists dressed as Merpeople protest against bottom trawling during a demonstration ahead of the COP26 summit, in Glasgow, Scotland Britain, October 30, 2021. (Photo by Dylan Martinez/Reuters)

A man rides past a destroyed tank in Mesobit, Ethiopia, on December 06, 2021. (Photo by Amanuel Sileshi/AFP Photo)

Prince Philip, Duke of Edinburgh practicing his bicycle polo technique, Windsor Great Park, Berkshire, 1964. (Photo by Norman Potter/Daily Express/Hulton Archive/Getty Images)