A performer dances at a housing exhibition in Wuhan, Hubei province, China, September 27, 2015. (Photo by Reuters/Stringer)

A man drinks at a "colored" water cooler in a streetcar terminal in Oklahoma City, July 1939. (Photo by Reuters/Library of Congress)

A bride waits to take her wedding vow during a mass marriage ceremony in which, according to its organisers, 111 Muslim couples took their wedding vows, in Ahmedabad, India January 26, 2017. (Photo by Amit Dave/Reuters)

A child sleeps under a table at the Jorkpan market in Sinkor district in Monrovia, Liberia on May 2, 2016. (Photo by Marco Longari/AFP Photo)

A helicopter drops fire retardent to protect a property in Balmoral, 150 kilometres southwest of Sydney on December 19, 2019. A state of emergency was declared in Australia's most populated region on December 19, as a record heat wave fanned unprecedented bushfires. (Photo by Peter Parks/AFP Photo)

Russian President Vladimir Putin, right, and North Korea's leader Kim Jong Un pose for photographers during their meeting in Vladivostok, Russia, Thursday, April 25, 2019. Putin and Kim are set to have one-on-one meeting at the Far Eastern State University on the Russky Island across a bridge from Vladivostok. The meeting will be followed by broader talks involving officials from both sides. (Photo by Alexander Zemlianichenko/AP Photo/Pool)

Britain's Health and Social Care Secretary Matt Hancock wears Union Jack socks as he leaves with Britain's Leader of the House of Lords Baroness Evans after a cabinet meeting on Downing Street in London, Britain on January 7, 2020. (Photo by Toby Melville/Reuters)

Indian bride takes part in a mass marriage ceremony under chief minister's welfare scheme (Mukhyamantri Kanyadan Yojna) on the occasion of the Basant Panchami festival, in Bhopal, India, 30 January 2020. (Photo by Sanjeev Gupta/EPA/EFE/Rex Features/Shutterstock)