We close the divide because we know, to put our future first / we must first put our differences aside," she said.
A Thesaurus will give you many words that also mean the same thing to change it up.
They gave us the written word where before stories were word of mouth. Even though they wrote in Latin many of the root words are used today in the English language. The gave us measurements like mile, foot and inche. Also Roman numerals are still used, especially in regards to time-pieces. They gave us Christianity. They also introduced some spices and small animals like poultry.
I’m not sure but probably gold.
Number 3 seems the be the correct answer