A brief biography of Sacagawea, the Shoshoni woman who accompanied explorers Lewis and Clark on their expedition in the early 1800s.

Describes the critical events and timing which led to major scientific discoveries including Newton's laws of gravity, Lise Meitner's work with nuclear fission, and experiments with penicillin.

Ellen and William Craft were two of the few slaves to ever escape from the Deep South. Their first escape took them to Philadelphia, then on to Boston pursued by slave hunters, and finally 5000 miles across the ocean to England, where they were able to settle peacefully.