Feel free to extend Valentine's Day weekend one more day as a federal holiday approaches. Presidents Day is celebrated on the third Monday of February to commemorate the Founding Fathers and the ...

Over the course of his long career in government, Gates served under numerous US presidents. We asked him to share the leadership lessons — both positive and negative — he learned from them ...

In this lesson, students interrogate their own assumptions ... More than 1800 people died that day, but to this day, no one knows conclusively what caused the explosion. Was it an accident?