What was the outcome of the spanish america war

What effect did john hay’s open door policy letters have on the imperial powers of britain, france, germany, russia, and japan? a. it provoked the imperial powers to declare war on the united states. b. it caused the imperial powers to restrict trade in their trade with china. c. it warned the imperial powers that the united states would soon declare war on china. d. it signaled to those powers that the united states would take a larger role in world affairs than before.

Why is it useful for historians to base certain studies on the analysis of historical periods

What made it difficult for mexican americans to win court cases against anglo americans who laid claim to their land