In which u. s. state did the battle of gettysburg take place?

The irish and germans of the 1840's were part of the new immigration. true or false

What is the approximate area of a circle with a radius of 15 feet

The picture below shows president richard nixon and the first lady standing before the great wall of china in 1972. they are smiling - as are the chinese with them. when this picture was shown on american television, americans were aware that it was a historic moment. what are two reasons why this moment was important for both china and the united states?