Following is a transcript of the video. Narrator: Fireworks have been around for millennia. They flood the sky with brilliant bursts of scarlet, emerald, and ivory. But never blue. Pyrotechnicians ...

Fireworks explode over Mount Rushmore National Memorial in South Dakota's Black Hills. (Courtesy of Travel South Dakota) In the earliest days of the United States, John Adams wrote to his wife Abigail ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Paul E. Smith, Purdue University (THE CONVERSATION) In the earliest days of the United ...

Add Yahoo as a preferred source to see more of our stories on Google. Fireworks are a class of explosive pyrotechnic devices that commonly come in around seven colors. Shahril KHMD/Shutterstock.com In ...

In the earliest days of the United States, John Adams wrote to his wife Abigail about the celebration of independence, “It ought to be solemnized with Pomp and Parade, with Shews, Games, Sports, Guns, ...