By the early 1900s, Germany had worsening relations with all of the following except "Austria-Hungary", since a wave of nationalism in Germany gave them the impression that Austria-Hungary was really a part of Germany anyway.
It introduced the use of coal oil and natural gas as sources of fuel.
Answer:
Are you sure 1965 is right?? Could it be 1865? I think you are looking for the Gilded Age from late 1860s to 1900.
Explanation:
