What was teddy roosevelt's role in ending the russo japanese war?

Which of harriet martineau’s books is a foundational treatise on sociological data collection?

By the end of the 1800s, there was a change in the nature of the immigrants coming to the united states. immigration from northern europe—england, ireland, germany, and scandinavia—declined, while immigration from italy, russia, and austria-hungary grew. in fact, between 1900 and 1910, more than three-fourths of all immigrants came from these three countries. unfortunately, these countries were far removed england, the home of our founders, and the immigrants who came from them had a hard time adjusting to life in their new country.

Why did richard and mildred loving have to go to washington, d. c. to get married?