When did liquor licensing come into effect?

It's impossible to give a single date for when liquor licensing came into effect because:

* It varies by location: Different countries and regions have implemented liquor licensing at different times.

* Laws evolve: The specific regulations and licensing requirements have changed over time.

To find the specific information you need, you'll need to clarify:

* Which country or region are you interested in?

* What specific aspect of liquor licensing are you looking for? (e.g., the first legislation, a major change in regulations, a specific type of license)

For example, you could ask:

* "When did liquor licensing first come into effect in the United States?"

* "When did the UK introduce licenses for pubs?"

* "What year did the licensing requirements for selling spirits change in California?"

With this information, I can provide you with more accurate and relevant details.