in 1900, a group of sponge divers discovered one of the most important Roman shipwrecks ever off the coast of a Greek island. What was hidden in this shipwreck? In one nonfiction article, readers will learn about that hidden discovery – a Greek mechanism used for calculating the motion of planets and stars – known as the first computer! This article is accompanied by a fictional story of that Roman shipwreck sometime between 70 and 50 BC. Readers will also learn about the inventions of the famous mathematician, Archimedes.