A view of electricity wires, in Caracas, Venezuela, 03 April 2019. West Venezuela started receiving electricity intermittently in the states of Zulia, Falcon, Merida and Trujillo after 100 hours without power. (Photo by Miguel Gutierrez/EPA/EFE/Rex Features/Shutterstock)

A man takes a selfie next to a burning barricade during a protest against the government in the streets of Port-au-Prince, Haiti, February 10, 2019. (Photo by Jeanty Junior Augustin/Reuters)

A demonstrator sits on the coffin containing the body of a protester who was killed during previous protests in Port-au-Prince, Haiti, Monday, March 4, 2019. Protesters are angry about skyrocketing inflation and the government's failure to prosecute embezzlement from a multi-billion Venezuelan program that sent discounted oil to Haiti. (Photo by Dieu Nalio Chery/AP Photo)

A woman is detained by security forces after looting broke out during an ongoing blackout in Caracas, Venezuela, March 10, 2019. (Photo by Ivan Alvarado/Reuters)

A woman sticks out her tongue as she shops at the Quinta Crespo street market in downtown Caracas, Venezuela, Saturday, January 26, 2019. The country's political showdown moves to the United Nations Saturday where a Security Council meeting called by the United States will pit backers of President Nicolas Maduro against the Trump administration and supporters of the country's self-declared interim leader Juan Guaido. (Photo by Rodrigo Abd/AP Photo)

Police run past a burning car as they push protesters back during the “yellow vests” demonstration near the Arc de Triomphe on December 8, 2018 in Paris France. “Yellow Vests” (“Gilet Jaunes” or “Vestes Jaunes”) is a protest movement without political affiliation which was inspired by opposition to a new fuel tax. (Photo by Chris McGrath/Getty Images)

A man carries a child in a wheelbarrow near a burning tire barricade in the framework of the protests of the last three days due to the increase in fuel prices, in Port-au-Prince, Haiti, 09 July 2018. Haiti was today practically paralyzed by a transport strike after three days of violent riots due to an increase in fuel prices, which the Government left without effect shortly after the announcement. The Prime Minister, Jack Guy Lafontant, today heads a meeting with representatives of Parliament to assess the situation created after the violent protests, which have left at least three dead and several injured. (Photo by Jean Marc Hervé Abelard/EPA/EFE)

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)