Tsar Alexander II (1818–1881) known as “The Liberator” lying in state. He was mortally wounded by an assassination attack in St Petersburg. (Photo by Hulton Archive/Getty Images). March 1881

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

Student protestors, including one girl with a camera, struggle with soldiers from the Chinese Army, the PLA. Tiananmen Square, 1989. (Photo by Jeff Widener/Associated Press)

Sikh Nihang's Singh (Sikh warriors) walk along the empty Heritage Street after strict lockdown norms for weekends and public holidays were imposed as a preventive measure against the COVID-19 coronavirus, in Amritsar on June 13, 2020. (Photo by Narinder Nanu/AFP Photo)

Human Connection Award: People and Planet Ocean – Winner – Steve Woods. A free diver interacts with a sperm whale among a cloud of sargassum weed, Dominica. (Photo by Steve Woods/Ocean Photographer of the Year 2022)

Alejandro Davidovich Fokina of Spain reacts after the men's single tennis match of Dubai Duty Free Tennis Championship in Dubai, United Arab Emirates on March 01, 2023. (Photo by Amr Alfiky/Reuters)

Palestinians react as they gather at the site of an explosion, following Israeli strikes in Gaza City on August 5, 2022. (Photo by Mohammed Salem/Reuters)

Flames from the LNU Lightning Complex fires consume a home in unincorporated Napa County, Calif., on Wednesday, August 19, 2020. Fire crews across the region scrambled to contain dozens of wildfires sparked by lightning strikes. (Photo by Noah Berger/AP Photo)