They are "fundamental documents because they have a lot of manuscripts" by him and by other people, "meeting notes, correspondence", they are "thousands of letters sent to Otelo", said José Pacheco Pereira, founder of Ephemera, the largest private archive in Portugal. Otelo's legacy "is huge", it covers the initial period of 1974 when he was in the Council of the Revolution, the time of COPCON, and, so far, two shelves and many files have been received at Ephemera. The historian and former PSD deputy said that the two shelves are "a small part" of the documentation and describes what he has seen so far: "They are very different letters, ranging from greetings, congratulations, requests, to threats, insults, information and denunciations." This archive, according to the author of Álvaro Cunhal's biography, "is of great importance", given that the April military "has a central role in political life from 74 to the end of the 20th century". Otelo Saraiva de Carvalho, he added, "is a remarkable personality, first because he is the author of the operational plan of April 25, which all military consider a document of great quality from a strategic and military point of view". "Then, for all those vicissitudes of PREC, after November 25, the Popular Unity Dynamic Groups (GDUP's -- party created in 1976 and extinct the following year), the presidential candidacy of 1976 and 1980", he added. According to information from the Ephemera Archive, it is "a vast and rich set of documentation, manuscripts, photographs, pamphlets and brochures, political books, official military and political documents (many of them secret at the time), gifts and personal objects". And "they cover Otelo's entire political and military career, from his action as an officer in the colonial war theaters, the April 25 revolution and the "year of embers" of 1975, COPCON, the presidential candidacies, GDUPs, FUP, OUT, his arrests and trials". Otelo Nuno Romão Saraiva de Carvalho was born on August 31, 1936 in Lourenço Marques, Mozambique, and had a military career since the 1960s, he served a commission during the colonial war in Guinea-Bissau. In the Armed Forces Movement (MFA), which overthrew the Salazar and Caetano dictatorship, he was responsible for drawing up the military operations plan and, hence, being known as the strategist of April 25. He was also one of the military officers who was at the command post of operations at the Engineering Regiment No. 1, in Pontinha, on the outskirts of Lisbon. Associated with the radical left, he was one of the members of the Directory of the revolution, with Costa Gomes, president, and Vasco Gonçalves, prime minister, from May 1975. He was arrested following the events of November 25, a confrontation between the military left and the so-called "moderates", which dictated the normalization of the country, and was later released. He ran for president in 1976, getting 16.4% of the votes. Arrested in 1985, as a result of the FP-25 trial, an organization that claimed authorship of several attacks that killed 13 people over seven years, he was convicted and released five years later, in 1989. In 1996, the parliament approved an amnesty for FP-25 prisoners. Otelo Saraiva de Carvalho died on July 21, 2021. Read Also: April 25. The probabilities of the coup and the reason for day 25 (Portuguese version)