James I. Ruler of England 1603-1625. House of Stuart: Son of Mary, Queen of Scots, granddaughter of James IV and Margaret. First to call himself King of Great Britain. This became official with the Act of Union, 1707.
2
1608
Hans Lippershey invents the first refracting telescope.
3
1620
The earliest human-powered submarine invented.
4
1624
William Oughtred invents a slide ruler.
5
1625
Charles I. Ruler of England 1625-1649. House of Stuart: Only surviving son of James I; beheaded Jan 30, 1649.
Frenchmen, Jean-Baptiste Denys invents a method for blood transfusion.