Two guards perform an execution in China, one holding the gun, the other holding a mask over the victim's face. (Photo by General Photographic Agency/Getty Images). Circa 1925

Ireland's Philip Mulpeter, left, is kicked by Brazilian Vitor Nobrega during their welterweight mixed martial arts bout of International Pro Combat at the Estoril Casino in Estoril, near Lisbon, Portugal, Monday, January 26, 2015. Nobrega defeated Mulpeter. (Photo by Francisco Seco/AP Photo)

A woman whose livelihood depends on selling recyclable wastes collects trash from a dumping site while surrounded by Marabou storks on the outskirts of Uganda's capital Kampala March 31, 2015. (Photo by James Akena/Reuters)

A vendor wearing a protective face mask looks out of her store selling sugar-coated haws on a stick in Beijing, Sunday, April 12, 2020. (Photo by Andy Wong/AP Photo)

Youtubers wearing masks of pigs film a video at a shopping district which has fewer people than usually amid the coronavirus disease (COVID-19) outbreak in Tokyo, Japan, May 19, 2020. (Photo by Kim Kyung-Hoon/Reuters)

A man tries on a face mask with his portrait printed on it, amid the spread of the coronavirus disease (COVID-19), at a photo studio in Gandhinagar, India, May 27, 2020. (Photo by Amit Dave/Reuters)

Team members pose during the closing ceremony of the Tokyo 2020 Olympic Games, on August 8, 2021 at the Olympic Stadium in Tokyo. (Photo by Dan Mullan/Reuters)

A child dressed as Hindu god Krishna watches a mobile phone as a woman gives finishing touches to his costume on the occasion of “Janmashtami” festival marking the birth of Krishna in Ajmer on August 30, 2021. (Photo by Himanshu Sharma/AFP Photo)