The native peoples of North and South America came from Siberia thousands of years ago. There was a land bridge between Siberia and Alaska before the end of the last ice age.
A famous building in New York City is turning 100 years old this month. A year-long celebration is planned for Grand Central Terminal, which is usually called Grand Central station.
Today, we take a closer look at a story that is almost always in the news. Why is it that the Israelis and the Palestinians never seem to be able to solve their problems at the peace table?
This week in our series, we continue with the history of the United States Constitution. The Constitution became law once nine of America's 13 original states ratified it.