Today I learned that Pepsi introduced the 2-liter soda bottle to US markets, and the reason it's marketed in liters and not quarts/gallons (as you'd expect in the United States) is it came out in the 1970s during a push for US to convert to the metric system. More on the bottle, and the metric movement, here:

https://www.marketplace.org/2017/10/10/why-does-soda-come-liters-and-milk-gallons/