Charles Babbage (born London, England, 1791; died London, England, October 18, 1871) was a mathematician. He tried to develop two machines, the difference engine and the analytical engine. However, the time’s technology would not permit either machine to be built. Both these machines were precursors to early computers. Idea: Children could take apart an old calculator to see how small the parts are today. They could compare the parts to an illustration of Babbage’s work.
Cece Bell (born Richmond, Virginia, 1970) is an author and illustrator. Her books include El Deafo, which received a 2015 Newbery Honor Award. Other books include the Inspector Flytrap series and Crankee Doodle. Children can visit her website at: Cece Bell.
Thomas Nelson, Jr. (born Yorktown, Virginia, 1738; died Hanover County, Virginia, January 4, 1789) signed the Declaration of Independence. He represented Virginia. A wealthy plantation owner, Nelson organized his own tea party when he dumped two chests of tea into the York River. During the American Revolution, Nelson acted as both Governor of Virginia and a leader in the militia. Legend has it that when he found out the British were using his home as headquarters, he demanded the American troops fire on his home. Children can learn more at: Thomas Nelson, Jr..
Jean van Leeuwen (born Rutherford, New Jersey, 1937) has written over 40 books for children. Her characters include Oliver Pig and Amanda Pig. Children can read more at her website: Jean van Leeuwen.