Fifty years ago, as France exploded in mass protests, words scrawled on the walls of the Sorbonne summed up the revolutionary zeal of the time: “Run free, comrade, we’ve left the old world behind!”. Sexual liberation, artistic creativity and anti-capitalism were the order of the day. For those who were there, it was an unforgettable time. Here: A wounded student is transported by first-aid workers during riots on the Boulevard Saint-Michel, Paris, France on May 6, 1968. (Photo by Gökşin Sipahioğlu/SIPA Press)

People dancing to buskers performances in Sai Yeung Choi Street South in Mongkok district, Hong Kong, China, 28 July 2018. After 18 years of unregulated street performances, the street performers were forced to give up the space to vehicular traffic again. (Photo by Jerome Favre/EPA/EFE)

A model presents a creation by Indian designer Monisha Jaising during the grand finale of Lakme Fashion Week (LFW) Winter/Festive 2018, in Mumbai, India, 26 August 2018. (Photo by Divyakant Solanki/EPA/EFE)

Workers pull apart a house in Khandyga, Russia, on February 2, 2018. The shifting ground caused by the uneven thawing of permafrost each summer causes buildings like this Soviet-era apartment house to sag and collapse. (Photo by Amos Chapple/Radio Free Europe/Radio Liberty)

Participants with the word “Harta” on their bodies, link arms as they mark International Women's Day at Avenida 18 de Julio in downtown Montevideo, Uruguay March 8, 2021. The word is a term to say exhausted or “had enough” but used by women. (Photo by Mariana Greif/Reuters)

A Tibetan living-in-exile in India attends a peace march during the 62nd Tibetan National Uprising Day in the suburb of McLeod Ganj, the seat of the Central Tibetan Administration in exile, near Dharamsala, India, 10 March 2021. Tibetan Uprising Day is held annually on 10 March and commemorates the Tibetan uprising against the presence of the People's Republic of China in Tibet in 1959. (Photo by Sanjay Baid/EPA/EFE)

Metropolitan Police patrol as people party at the Soho district, as the coronavirus disease (COVID-19) restrictions ease, in London, United Kingdom on April 16, 2021. Pubs and Restaurants are expecting good business tonight being the first Friday night after Coronavirus lockdown rules were relaxed to allow outside dining and drinking. (Photo by Henry Nicholls/Reuters)

Steam comes out of the chimneys of the coal-fired power station Neurath near the Garzweiler open-cast coal mine in Luetzerath, Germany, Monday, October 25, 2021. The climate change conference COP26 will start next Sunday in Glasgow, Scotland. (Photo by Michael Probst/AP Photo)