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1564 CE - 1641 CE: Life of the scientist Galileo Galilei.
1564 CE: Galileo Galilei is born in Pisa, Italy.
1581 CE: Galileo studies medicine at the University of Pisa.
1589 CE: Galileo is appointed professor of mathematics at the University of Pisa.
1592 CE: Galileo is appointed professor of mathematics at the University of Padua.
1608 CE: Galileo Galilei develops a powerful new telescope.
1610 CE: Galileo publishes his Sidereus Nuncius (The Starry Messenger).
1610 CE: Galileo is appointed the duke of Tuscany’s official Mathematician and Natural Philosopher.
1612 CE: Galileo’s Discourse on Floating Bodies is published.
1613 CE: Galileo's Letters on Sunspots is published.
1616 CE: Galileo is admonished by Cardinal Robert Bellarmine for his pro-Copernicus writings.
1620 CE: Four moons of Jupiter are first observed by Galileo Galilei.
1623 CE: Galileo's The Assayer is published.
1633 CE: Galileo is tried and found guilty of heresy fro his pro-Copernicus writings.
1638 CE: Galileo's Discourse on Two New Sciences is published.
1642 CE: Galileo dies at his home on Tuscany.