Answer :
The illustration demonstrates a similarity between ancient Rome and the United States because it shows that Laws are written so people understand what is allowed.
What does the illustration prove about ancient Rome?
In Ancient Rome, there was a practice of posting new laws and old ones in public so that people would be able to know what was permitted in Rome and what wasn't. That way they wouldn't fall foul of the law and use ignorance as an excuse.
This is similar to the United States which writes laws to ensure that everyone has access to them and understand what is allowed in the United States and what isn't. This was they can avoid committing crimes because they didn't know.
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