"On February 1, 1960, four young Black men sat down at a Woolworth's lunch counter in Greensboro, North Carolina, and staged a nonviolent protest against segregation. At that time, most lunch counters in the South did not serve Black people. Soon, thousands of students were staging sit-ins across the South. In just six months, the Greensboro Woolworth's lunch counter was integrated. How did it become a symbol of civil rights? Find out the answer to...

"The Louisiana Purchase in 1803 nearly doubled the size of the United States. The U.S. suddenly went from consisting of 17 states along the Atlantic coast to claiming land as far west as present-day Montana. The U.S. government knew little about the terrain there. Was there a water route to the Pacific? President Thomas Jefferson sent William Clark and Meriwether Lewis to find out. With nothing to guide them but a compass, what would Lewis and Clark...

The bloody Battle of Spotsylvania Court House took place in May 1864. The frantic back-and-forth fighting at an area now called the Bloody Angle was among the fiercest single-day battles of the entire Civil War. How did the bullet-riddled stump of a once-mighty oak tree there become a symbol of the conflict? What can its story tell us about that day's battle and the broader history of the Civil War? Readers will out the answers to these questions...

"The bloody Battle of Spotsylvania Court House took place in May 1864. The frantic back-and-forth fighting at an area now called the Bloody Angle was among the fiercest single-day battles of the entire Civil War. How did the bullet-riddled stump of a once-mighty oak tree there become a symbol of the conflict? What can its story tell us about that day's battle and the broader history of the Civil War? Readers will find the answers to these questions...