Conflagration of mount tna, which overwhelmed the church of St. Leon, and the physician Piazzi.
The Piazzi Sopramuro is one of the oldest parts of the town.
It was on the 1st of January, 1801, that Piazzi commenced for the one hundred and fifty-ninth time to observe a new series.
Piazzi fell back upon pagan mythology for the name of his little world, and called it Ceres, from the Roman goddess of corn.
Piazzi noticed a considerable increase of lustre in a very faint star of the twelfth magnitude viewed through a comet.
