That one's going to be dramatic irony!
Answer:
All 282 laws of Hammurabi's Code were also probably read aloud in public on a regular basis <u> so that </u>no one could be excused for committing a crime because of not knowing the law.
Explanation:
What we need is a conjunction that links the two clauses, the first clause is giving the reason why all 282 laws of Hammurabi's Code were also probably read aloud in public on regular basis, and the second clause, after the conjunction so that, is to explain the activities related with the first clause.
"Often" is an adverb of time.
Esperanto is my best guess.
