If you mean who wrote the various writings in the entire book, it was many people through God's inspiration:
2 Timothy 3:16New King James Version (NKJV)16 All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness,
No. It was first codified by tradition via Moses - an Israelite.
As we know it, the bible was officially canonized with the addition of Revelations (and another book i forget which one) by 405 AD being widely accepted.
No. The only writings attributed to Esther are the dinner-party invitations she sent to King Ahasueros and Haman. They did not survive the millenia, and were not codified.
The Word of God was codified from Moses to the early 1st Century AD and became known as the 'Hebrew Bible.' By the 4th Century AD, the New Testament canon was added to the Hebrew work and became the current Bible. Many variations or versions of it are in existence today.
A government is not codified and cannot be codified. What can be codified is the law. There was not anyone who unified the Roman Empire because the Roman empire was never divided. Maybe you have in mind Justinian I who commissioned the Corpus Juris Civils (Body of Civil Law) also known as the Justinian Code. This work codified Roman civil law.
Codified the laws of their empire
The first five books of the Bible are called the 'Torah' or Pentateuch, containing the codified Law of God given to Moses at Mt. Sinai. They are Genesis, Exodus, Leviticus, Numbers, and Deuteronomy.
A codified law.
The codified laws of the United States are published in the United States Code Service.
LAWS
hinduism
We have codified laws that we attend to and the Hammurabi code was the first known laws codified into a code proven in history.