How henry ford was able to make automobies affordable for the majority of americans

How did chinese culture change during the warning stated period

President nixon's trip to china included apex

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?