01202cam a2200313 i 4500 345713624 TxAuBib 20040817120000.0 920623t19921990||||||||||||||||||||eng|u 9780064451093 pbk. 0064451097 pbk. (OCoLC)26066821 CHE CHE TOY TxAuBib rda Lauber, Patricia. How we learned the earth is round / by Patricia Lauber ; illustrated by Megan Lloyd. 1st Harper Trophy ed. [New York : HarperTrophy, 1992. ©1990. 32 pages : illustrations ; 18 x 23 cm. txt rdacontent n rdamedia nc rdacarrier Let's-read-and-find-out science book. Explains various changes in humanity's beliefs about the shape of the earth, from the flat earth theories of the ancients to the round earth theories which were proven true by the voyages of Columbus and Magellan. 20040817. Earth (Planet.) Lloyd, Megan, illustrator. Let's-read-and-find-out science book.