She is an Afro-Colombian environmental crusader who has faced down untold death threats and survived at least one assassination attempt to become one of the leading lights of Latin America’s new left. Now, Francia Márquez could be on the verge of becoming Colombia’s next vice-president after the leftist frontrunner, Gustavo Petro, picked her as his running mate – a move that has thrilled progressives and civil rights activists across the region. “Every Colombian, in their diversity, from the regions, from each territory, made it possible for us to be here,” said Márquez, who, if elected in the 29 May vote, would join Costa Rica’s Epsy Campbell Barr as one of only two black female vice-presidents in Latin America. Afro-Colombians make up nearly 10% of Colombia’s population of 50 million, descending from enslaved people brought from Africa to work on sugar cane plantations, goldmines and the large estates of landowning Spanish colonists. They remain under-represented in business and politics.