Mr. Beat tells you all about Jane Addams, one of the most important figures in American history. This is part of another mega-collaboration of a bunch of history YouTubers to celebrate women's history month. We're calling it...

Mr. Beat tells you all about Jane Addams, one of the most important figures in American history.

The price of GameStop stocks has been volatile after some brokerages restricted trade. A former U.S. Securities and Exchange Commission attorney says the ongoing saga 'starts to put into doubt' metrics used for companies' valuations.