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Hace 23 horas · Historical earthquakes is a list of significant earthquakes known to have occurred prior to the early 20th century. As the events listed here occurred before routine instrumental recordings, seismotomography technique, observations from space using satellites — they rely mainly on the analysis of written sources, observations of shaking objects and/or animal behavior during earthquakes ...
Hace 23 horas · Siege of Eretria (490 BC) – Part of the First Persian invasion of Greece. Siege of Paros (489 BC) Siege of Himera (480 BC) – Sicilian Wars. Siege of Potidaea (480 BC) – Second Persian invasion of Greece. Siege of Olynthus (480 BC) – Second Persian invasion of Greece. Siege of Sestos (479 BC) – Greco-Persian Wars.
Hace 23 horas · In the 13th century BC, Amman was the capital of the Ammonite Kingdom, and became known as "Rabat Amman". Rabat Amman provided several natural resources to the region, including sandstone and limestone, along with a productive agricultural sector that made it a vital location along the King's Highway , the ancient trade route connecting Egypt with Mesopotamia , Syria and Anatolia .
Hace 23 horas · Although red supergiants are often considered the largest stars, some other star types have been found to temporarily increase significantly in radius, such as during LBV eruptions or luminous red novae. Luminous red novae appear to expand extremely rapidly, reaching thousands to tens of thousands of solar radii within only a few months ...
Hace 23 horas · Dieses Machtgefälle konnten die fünf Reiche ausgleichen, indem sie Bürgerwehren der städtischen conséjos, Bruderschaften (cofradías) und Ritterorden mobilisierten. Zu letzteren zählte seit 1156 der Alcántaraorden in León, seit 1157 der Orden von Calatrava in Kastilien und seit 1170 der Jacobusorden in beiden Reichen.
