Once upon a time, for thousands of years, the human beings on two continents, Europe and North America, just ignored each other. Then, in the late 980s, a group known as the Norsemen, more famously known as Vikings, left Iceland, heading...

American history is full of wild tales of adventure, genuinely ludicrous achievements, and no small amount of super depressing things. Caught in this tawdry tangle of sometimes violent and horrific, sometimes glorious and heroic history...

In this video, the teacher discusses the life of Sacagawea, a Native American woman who played a crucial role in the Lewis and Clark expedition. The teacher covers Sacagawea's early life, her involvement in the expedition, and her impact...