* Astronomy

Terra or Tellus was a goddess personifying the Earth in Roman mythology. 
A festival for Tellus called the Fordicidia or Hordicidia was held every year on April 15; it involved the sacrifice of pregnant cows and was managed by the pontifex maximus and the Vestal Virgins. The Virgins kept the ashes of the fetal calves until they were used for purification at Parilia.
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