Celio Calcagnini
Encyclopedia
Celio Calcagnini also known as Caelius Calcagninus, was an Italian humanist and scientist from Ferrara
Ferrara
Ferrara is a city and comune in Emilia-Romagna, northern Italy, capital city of the Province of Ferrara. It is situated 50 km north-northeast of Bologna, on the Po di Volano, a branch channel of the main stream of the Po River, located 5 km north...

. His learning as displayed in his collected works is very broad.

He had a wide experience: as soldier, academic, diplomat and in the chancery of Ippolito d'Este
Ippolito d'Este
Ippolito d'Este was an Italian Roman Catholic cardinal, and Archbishop of Esztergom. He was a member of the House of Este.-Biography:...

. He was consulted by Richard Croke
Richard Croke
Richard Croke was an English classical scholar, and a royal tutor and agent.He was educated at Eton College. He took his B.A. at King’s College, Cambridge in 1510, and proceeded to travel....

 on behalf of Henry VIII of England
Henry VIII of England
Henry VIII was King of England from 21 April 1509 until his death. He was Lord, and later King, of Ireland, as well as continuing the nominal claim by the English monarchs to the Kingdom of France...

. He was a major influence on Rabelais's literary and linguistic ideas and is presumed to have met him in Italy, as well as being a teacher of Clément Marot
Clément Marot
Clément Marot was a French poet of the Renaissance period.-Youth:Marot was born at Cahors, the capital of the province of Quercy, some time during the winter of 1496-1497. His father, Jean Marot , whose more correct name appears to have been des Mares, Marais or Marets, was a Norman from the Caen...

 and was praised by Erasmus.

Giovanni Battista Giraldi
Giovanni Battista Giraldi
Giovanni Battista Giraldi was an Italian novelist and poet. He appended the nickname Cinthio to his name and is commonly referred to by that name .Born at Ferrara, he was educated at the university there, and in 1525 became its professor of natural philosophy...

 was a student of his, and succeeded him at the University of Ferrara
University of Ferrara
The University of Ferrara is the main university of the city of Ferrara in the Emilia-Romagna region of northern Italy. In the years prior to the First World War the University of Ferrara, with more than 500 students, was the best attended of the free universities in Italy...

.

He had a contemporary reputation as an astronomer, and wrote on the rotation of the earth. He knew Copernicus in Ferrara at the beginning of the sixteenth century. His Quod Caelum Stet, Terra Moveatur is a precursor of the De Revolutionibus of Copernicus, though A. C. Crombie qualifies his rotational theory as "vague", and is often dated to about 1525.
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