The establishment of relief agencies
Isabella d'Este was a Renaissance figure who was a valued advisor to her husband, the ruler of Mantua, and took charge of the court after he retired.
The Phanerozoic is divided into three eras: the Paleozoic, Mesozoic, and Cenozoic. You could have googled the question.
The Zimmerman telegraph allowed communication across farther distances, making a world war more feasible. This gave a certain amount of confidence and the U.S. joined the war.
