The document provides information about famous explorers Christopher Columbus and Leif Eriksson, discussing how Columbus sailed from Spain in 1492 and reached the Bahamas, believing he had found a new route to Asia, while Leif Eriksson had actually discovered North America around 500 years earlier when traveling from Greenland. It then outlines classroom activities for students, including listening to a presentation on the topic, sequencing events, describing pictures, and writing short stories, to better understand who truly discovered America first.