What were the most important changes made to the piano during the romantic period (1790-1870)?

Romantic music is a period of Western classical music that began in the late 18th or early 19th century. It is related to Romanticism, the Western artistic and literary movement that arose in the second half of the 18th century, and Romantic music in particular dominated the Romantic movement in Germany.

it would be  

germany had to pay all damages related to the war.

and i think

germany had to take sole responsibility for the war.