Could the united states between 1870 and 1914 be considered a land of opportunity

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?

The magma carta has what effect on english monarchs?

Which factor was an important contributor to the start of world war 1