Dentures were patented in the United States by Charles Graham of New York, New York, in 1822. False teeth had been around for centuries, but those dentures were made from human teeth or animal teeth. His dentures were made from porcelain and were harder and more durable. George Washington wore dentures. Children could find out how many sets of dentures George Washington had.
Flag of Brazil
Brazil celebrates Independence Day. It became free from Portuguese rule in 1822, but Portuguese is still the official language. This South American country is only slightly smaller than the United States. Over 200 million people live in Brazil, and Brasilia is the capital. It exports coffee and soybeans. Idea: Children could compare and contrast the Portuguese language and the Spanish language. Children could learn more at: Brazil.
Rosetta Stone
Courtesy of Hans Hillewaert
Jean-Francois Champollion declared in 1822 that he had deciphered the Rosetta Stone. The monument contained the same speech in three languages. He was able to translate the speech in two of the languages, and he used patterns and syntax to decode the Egyptian hieroglyphics, the third language. The Rosetta Stone is housed in the British Museum. Children could learn about the Rosetta Stone and Egyptian hieroglyphics at: Rosetta Stone.