Question

how strong was the Greek wine​

Answer 1

Explanation:

both Greek and Roman wines likely had as high as 15% or 20% ABV, compared with 10-12% or so in most modern wines. ... The main difference between Roman and modern wines was likely their alcohol content, as both Greek and Roman wines likely had as high as 15% or 20% ABV, compared with 10-12% or so in most modern wines.

for every one part of the wine 20 parts of water were added

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