No, 1642 was in the 17th century.
Blaise Pascal along with Wilhelm Schickard was one of two inventors of the mechanical calculator in the early 17th century. Pascal designed the machine in 1642.
Galileo Galilei was alive from February 15, 1564, to January 8, 1642. He was an Italian astronomer, physicist, and engineer who made significant contributions to the development of modern science.
1642=MDCXLII
1 2 821 1642.
1642
1642 in Scientific Notation = 1.642 x 103
766 + 876 = 1642 1642 / 2 = 821
Galileo Galilei lived from 15 February 1564 to 8 January 1642, which was towards the end of the Italian Renaissance (1300 to 1600). (http://en.wikipedia.org/wiki/Galileo) (http://europeanhistory.about.com/od/italyandthecitystates/tp/keyeventsitaly.02.htm)
1642 she was 50 when she was accused in 1692 1692-50=1642
The abacus was invented by the Sumerians in 2,700 BCE, not in 1642 ACE
Worldwide, there were more Catholics than Protestants in 1642 as there are today.