How long has it been known that alcohol causes cancer?

Wow, I did not know that. I just researched it and I was blown away. I assume the sugar in alchol also doesn’t help.

It has been known as long as knowing that everything causes cancer.

I’m looking for the documentation of the earliest point, but I have heard and read for decades? that it causes many kinds of cancer.

”What types of cancer does alcohol cause?
Drinking alcohol increases the risk of 7 different types of cancer. This includes:
”Breast and bowel cancer (two of the most common types).”
Mouth cancer.
Some types of throat cancer: oesophagus (food pipe), larynx (voice box), and pharynx (upper throat).
Liver cancer.”*_

https://www.cancerresearchuk.org/about-cancer/causes-of-cancer/alcohol-and-cancer/does-alcohol-cause-cancer

I don’t know how to make the whole text in bold and italics