How did the relationships of lords and knights exemplify the system of feudalism

In what two ways were the tang and song dynasties of china similar? they jointly built the grand canal. they were economically strong. they had weak military forces. they ruled for about 300 years. they discouraged buddhist ideas.

What person was influential and trying to ease race relations in america during the early part of the twentieth century

During world war ii who is the commander-in-chief of the pacific fleet