The Deeds of the Dukes of Normandy
The Gesta Normannorum Ducum [The Deeds of the Dukes of Normandy] is a landmark medieval chronicle tracing the rise and fall of the Norman dynasty from its early roots through the pivotal events surrounding the Norman Conquest of England. Originally penned in Latin by the monk William of Jumièges shortly before 1060 and later expanded at the behest of William the Conqueror, the work chronicles the deeds, politics, battles, and leadership of the Norman dukes, especially William’s own claim to the English throne. The narrative combines earlier historical sources with firsthand information and oral testimony to present an authoritative account of Normandy’s transformation from a Viking settlement into one of medieval Europe’s most powerful realms. William’s history emphasizes the legitimacy, military prowess, and governance of the Norman line, framing their expansion, including the conquest of England, as both divinely sanctioned and noble in purpose. Later chroniclers such as Orderic Vitalis and Robert of Torigni continued the history, extending the coverage into the 12th century, providing broader context on ducal rule and its impact. Today this classic work remains a foundational source for understanding Norman identity, medieval statesmanship, and the historical forces that reshaped England and Western Europe between 800AD and 1100AD.
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Galileo Galilei is in Astronomers, Scientists.
On 15th February 1564 Galileo Galilei was born.
On 8th January 1642 Galileo Galilei (age 77) died.
Samuel Pepys' Diary. 23rd March 1663. Thence to see my Lord Sandwich (age 37), and who should I meet at the door but Major Holmes (age 41). He would have gone away, but I told him I would not spoil his visitt, and would have gone, but however we fell to discourse and he did as good as desire excuse for the high words that did pass in his heat the other day, which I was willing enough to close with, and after telling him my mind we parted, and I left him to speak with my Lord, and I by coach home, where I found Will Howe come home to-day with my wife, and staid with us all night, staying late up singing songs, and then he and I to bed together in Ashwell's bed and she with my wife. This the first time that I ever lay in the room. This day Greatorex (age 38) brought me a very pretty weather-glass for heat and cold1. 24th. Lay pretty long, that is, till past six o'clock, and them up and W. Howe and I very merry together, till having eat our breakfast, he went away, and I to my office.
Note 1. The thermometer was invented in the sixteenth century, but it is disputed who the inventor was. The claims of Santorio are supported by Borelli and Malpighi, while the title of Cornelius Drebbel is considered undoubted by Boerhaave. Galileo's air thermometer, made before 1597, was the foundation of accurate thermometry. Galileo also invented the alcohol thermometer about 1611 or 1612. Spirit thermometers were made for the Accademia del Cimento, and described in the Memoirs of that academy. When the academy was dissolved by order of the Pope, some of these thermometers were packed away in a box, and were not discovered until early in the nineteenth century. Robert Hooke describes the manufacture and graduation of thermometers in his "Micrographia" (1665).
