The way in which carbonated beverages such as Coca-Cola, Hires Root Beer, Dr. Pepper, and Pepsi-Cola were advertised in the 1800s was vastly different from today. How were these beverages originally promoted

As medicine.

Explanation:

Before, people believed that naturally carbonated water contained healing powers, that could cure various illnesses. It was introduced in the 18 century where it was sold at pharmacies, where it was mixed with various medicines and flavoring to make it taste better, which makes what types of soda we have today.