
Knots representing numbers: The mathematics of the Incas
Quechua civilization used knotted strings called ‘quipu’ to represent numerical values
Quechua civilization used knotted strings called ‘quipu’ to represent numerical values
Thousands of Peruvians are calling for new elections after Pedro Castillo’s failed self-coup plunged the country into chaos. At least 22 people have been killed in the clashes
Two ministers have resigned following the deaths of 21 protestors, while the Peruvian Congress voted down a proposal hold early elections
The death toll from street protests continued to rise while a judge granted prosecutors’ request to extend jail time for the impeached president
Ana María Ortiz is researching treatments for depression and anxiety using the psychedelic toxins of a rare amphibian
President Dina Boluarte – who was sworn in last week – has adopted the measure for the next 30 days, after at least seven people were killed in clashes between police and rioters
Arrested following a failed coup attempt, the former president is convinced he is a victim of political persecution and will be reinstated despite facing up to 50 years in jail
At least two people are dead and 30 injured following clashes between protesters and law enforcement across the country
The arrest of the former Peruvian president – impeached after attempting to shutter Congress – is another surprise in a long trail of short-lived governments
Gustavo Petro – an ally of the former president, who is currently under arrest after trying to shut down Peru’s Congress – asked the Inter-American Commission on Human Rights to intervene, but was told that the body respects the ‘democratic response’ of Peruvian institutions
In a conversation with EL PAÍS, the main adviser to Pedro Castillo provides an account of the three hours during which the head of state tried to revert the constitutional order
Pedro Castillo ended up under arrest and charged with rebellion after his failed attempt to dissolve Congress and install an emergency government
For the third time in four years, the country’s head of state has been determined by the order of presidential succession
Before being detained by authorities, the Peruvian president announced that he was dissolving the Congress and ordering a curfew, as part of plan to rule by decree
The Peruvian police have confirmed the arrest of the leader, who has been in power for a year and a half
By 2030, 70% of the region’s electricity could come from renewable sources
This ancient species has rebounded in Colombia’s Amazon region thanks to conservation efforts and a greater emphasis on aquaculture
The ‘Blood Moon’ will be visible in North and Central America
The officers, who put on the hero costumes to disguise themselves as performers at a nearby school, arrested four people on the suspicion of belonging to a criminal organization
Attorney general files constitutional complaint in parliament alleging Castillo heads a criminal organization that controls bidding processes to obtain illicit gains