A version of this story appears in the September 2020 issue of National Geographic magazine. Philadelphia detected its first case of a deadly, fast-spreading strain of influenza on September 17, 1918.

No matter if you’re day trading penny stocks or you’re looking for stocks under $10 to add to your long-term portfolio, you need to open a brokerage account before you can begin trading. Your broker ...

A ranking of the top songs based on streaming and sales activity from within the country- as tracked by Luminate. The ranking is based on a weighted formula incorporating official-only streams on both ...