Austria-Hungary threatened war on Serbia
He was originally trying to find a area somewhere on the coast of the United States to try and find gold deposits and return wealth to the royalty of Portugal.
C, coal changed the game and increased production by increasing speed and efficiency.
The industrial revolution sped up the process of urbanization <span />
West Berlin was given supplies from the Western allies (USA, Great Britain, France) in the Berlin air lift because the Soviets blockaded Berlin in the hopes of gaining control of all of Berlin and eventually all of Germany