Hey kiddo! Have you ever seen people smoking cigarettes? The Anti-Cigarette League of America is a group of people who think that smoking cigarettes is not good for you, and that nobody should smoke.
A long time ago, people didn't really know that smoking was bad for them. But as time went by, doctors and scientists figured out that smoking can make your lungs sick, and it can even give you diseases like cancer.
So the Anti-Cigarette League of America was created to help spread the word about how bad smoking is. They want to make sure that everyone knows that smoking is dangerous and can make you really sick.
The League does things like putting up posters, making TV commercials, and talking to people about why they should quit smoking. They also work with the government to create laws that make it harder for people to smoke, like having to smoke in certain areas or not being allowed to smoke in public places.
So, in a nutshell, the Anti-Cigarette League of America is a group of people who want to help keep you healthy by making sure you don't smoke cigarettes.