What is one way german culture has been changed or affected by cultural diffusion?

Demography. In accordance with modern European patterns of demographic development, Germany's population rose from about 25 million in 1815 to over 60 million in 1914, despite heavy emigration

answer; people where able to travel across the u.s.a faster than any other mode of transportation,travel time was about a week,from coast to coast

a. the astrolabe could determine the correct latitudinal location of the ship