Answer:
Werent they not supposed to have rights/freedom at all.
The Olmec were the first majror civilization in Mexico following a progressive development in Soconusco. They lived in the tropical lowlands of south-central Mexico in the presentday states of veracruz and tabasco. It has been speculated that Olmec derive in part from neighboring mokkaya and/or Mixe–Zoque.
Freedom of religion. 1st amendment of the constitution
The Tigris provided fresh water in order to grow crops they created things called leeves that transport water to supply it. The eurphrates did the exact same thing they provided water for the crops. Hope this answered your question.