What is the uniqueness of the monarchical system of government in a kingdom​

Did the spanish settlers and missions have a positive effect on world history? why, what did they do that was positive? why was the treaty of paris (1763) good for the world/world history? did the plymouth colony have a positive effect on world history? why, what did they do that was positive?

(05.04 mc) how did the roman transportation system keep the empire strong? plz

Enter the word you received when you completed the roots of the cold war activity