Answer:
Leapfrogging was a result of Island-Hopping
Explanation:
Partially because the Allies used submarine and air attacks to surround and divide Japanese bases, disrupt their garrisons and decrease Japanese assets-and reinforcement capacity.
They wanted to stay nurtral to make more money.
Building on McKinley's effective use of the press, Roosevelt made the White House the center of news every day, providing interviews and photo opportunities. After noticing the White House reporters huddled outside in the rain one day, he gave them their own room inside, effectively inventing the presidential press briefing.
Because the printing press was not invented until later, so before that all books had to be copied by hand. It was very time-consuming and required a lot of skill.
