Case file · Abduction
Antônio Vilas-Boas
A Brazilian farmer gave one of the earliest detailed abduction accounts.
1957 CE · -21.60, -41.05 · status: account
The account
Vilas-Boas described being taken aboard a craft and subjected to an examination — a template many later accounts echoed.
The sceptical view
Uncorroborated single-witness testimony.
The researched reading
The first famous abduction story, told by one man and examined by a doctor. Vivid fantasy or invention are likelier than a real abduction, and the medical findings do not settle it.
| Explanation | Weight | Why |
|---|---|---|
| Perception, memory or mind | 48% | A single witness describing capture and sexual contact at night fits vivid fantasy, dreams or hypnopompic experiences; sleep paralysis research shows how real such experiences feel. |
| Undetermined | 20% | The share the reading had given to fabrication on doubt rather than evidence: the record does not settle it either way. |
| A hoax or fabrication | 15% | The story resembles themes in magazines of the day, and it emerged after he contacted journalist João Martins; however, he never sought fame and kept to the story as a respected lawyer later. |
| Genuinely anomalous | 12% | Dr Olavo Fontes recorded skin lesions and symptoms he linked to radiation, and the account is consistent and detailed, though the findings are non-specific. |
| Secret human technology | 2% | No human programme fits. |
| Something known, misidentified | 1% | Nothing in the account resembles a known object. |
| A known natural phenomenon | 1% | Skin lesions have ordinary causes, but no natural event explains the story. |
| A poorly understood natural phenomenon | 1% | Nothing points to an unusual natural phenomenon. |
Official position: No official investigation; it was studied by Brazilian ufologists and doctors and became the template abduction case.
Connections in the atlas
- Itaipu Fort 'attack'
- José Antônio da Silva, Bebedouro
- Antonio Carlos Ferreira, Mirassol
- Emilcin abduction
- Antônio La Rubia, Paciência
- Elias Seixas de Mattos
- Pirassununga landings
- Arlindo Gabriel, Baependi
- Meng Zhaoguo encounter
- Rivalino Mafra da Silva disappearance
- Dionisio Llanca abduction
- SIOANI (Brazilian Air Force)