ガリレオと望遠鏡

1564 Galileo was born in Pisa, Italy. His father, a musician, is said to have taught him music and mathematics.

1582-84 Galileo was enrolled at the University of Pisa. However, he mainly attended Academy of the Arts of Drawing-an academy of Ostilio Ricci specialising in architecture-and left the university without a diploma.

1589 He was appointed to the chair of mathematics in Pisa.

1592 He became a professor of mathematics at the University of Padua in the Republic of Venice.

1597 Galileo wrote a letter to Kepler and stated that he would adopt the Copernican theory (heliocentric theory).
1604 A nova appeared and created a dispute.
1609 Galileo created the world's first astronomical telescope and made various astronomical discoveries (Jupiter's satellites, a galaxy is a group of stars, the asperity of the moon, etc.).

1610 『March, Galileo published The Starry Messenger (Sidereus Nuncius) and became famous.

1610 July, He became Chief Mathematician and Philosopher to the Grand Duke of Tuscany of Florence (and thus his salary was increased).

1613 Galileo published Letters on Sunspots (Istoria e dimostrazioni intorno alle macchie solari)
1615 He was accused of heresy after having written a Letter to the Grand Duchess Christina (Lettera a Madama Cristina di Lorera), which he addressed to mother of the Grand Duke of Tuscany.

1623 Pope Urban VIII, who had a profound knowledge of mathematics, was chosen as the new pope. Galileo began writing Dialogue Concerning the Two Chief World Systems (Dialogo sopra i due massimi sistemi del mondo).

1633 June, Galileo yielded to the Vatican, and began his disappointing retirement in Arcetri in December (forced home confinement).

1638 Galileo published Discourses and Mathematical Demonstrations Relating to Two New Sciences (Discorci e dimonstrazioni mathematiche, intorno a due nouve scienze) in Holland. He had secretly written the book while in Arcetri.

1642 Galileo died in Arcetri.