- Kepler (archive.org)
In order to emphasise the importance of the reforms introduced into astronomy by Kepler, it will be well to sketch briefly the history of the theories which he had to overthrow. In very early times it must have been realised that the sun and moon were continually changing their places among the stars. The day, the month, and the year were obvious divisions of time, and longer periods were suggested by the tabulation of eclipses. We can imagine the respect accorded to the Chaldaean sages who first discovered that eclipses could be predicted, and how the philosophers of Mesopotamia must have sought eagerly for evidence of fresh periodic laws.
- Operação Prato (Wikipedia)
Operation Saucer (Portuguese: Operação Prato; literally, Operation Plate) was an investigation carried out between 1977 and 1978 by the Brazilian Air Force following alleged UFO sightings in the city of Colares. The investigation was closed after finding no unusual phenomena.