Participants wearing costumes and masks take part in the first day of the traditional carnival parade in Mohacs, Hungary, 23 February 2017. The carnival parade of so-called busos, dressed in costumes with frightening wooden masks and using various noisy wooden rattlers, is traditionally held on the seventh weekend before Easter to drive away winter. (Photo by Sandor Ujvari/EPA)

A grasshopper in a protective mask created by microminiaturist Anatoly Konenko in Omsk, Russia on May 21, 2020. Mini-masks about the size of a rice grain are made of a special high-density medical fabric with a built-in air filter. Anatoly Konenko is one of Russia's most famous microminiaturists; his works include a grasshopper playing a violin, a shod flea, a miniature bass guitar, a camel train in a needle's eye, and over 200 miniature books. (Photo by Yevgeny Sofiychuk/TASS)

“The Blitz (from German, “Lightning”) was the sustained strategic bombing of Britain by Nazi Germany between 7 September 1940 and 10 May 1941, during the Second World War. The city of London was bombed by the Luftwaffe for 76 consecutive nights and many towns and cities across the country followed. More than one million London houses were destroyed or damaged, and more than 40,000 civilians were killed, half of them in London”. – Wikipedia

Photo: A fireman attempts to check the flames from a gas explosion, after an air raid in Central London the previous night. (Photo by Central Press/Getty Images). 1940

A man with a mask poses for a portrait as he takes part in festivities in honour of patron saint San Jeronimo in Masaya city, Nicaragua November 20, 2016. (Photo by Oswaldo Rivas/Reuters)

A man wearing a mask and dressed in a clown costume rides an electric tricycle while carrying a container in the shape of a rubber duck amid heavy smog in Beijing, China, December 29, 2015. (Photo by Jason Lee/Reuters)

A woman and her dogs stop and look at a store mannequin wearing a dog's head mask outside a fashion shop in Nice, France, May 3, 2016. (Photo by Eric Gaillard/Reuters)

A masked reveller poses near Saint Mark's Square during the Venetian Carnival in Venice January 31, 2015. (Photo by Stefano Rellandini/Reuters)

A young boy adjusts his friend's Adolf Hitler mask during a game on a street in King's Cross, London. (Photo by William Vanderson/Getty Images). 1938