The shortest term in office was William Henry Harrison, who served for only a month. Only he and James Garfield served as President for less than a year. Andrew Johnson was the vice president who served the longest time as President without specifically being elected to the office.Lincoln was assassinated a mere month into his second term, so Johnson got to serve almost all of Lincoln's four-year mandate.he shortest term in office was William Henry Harrison, who served for only a month. Only he and James Garfield served as President for less than a year. Andrew Johnson was the vice president who served the longest time as President without specifically being elected to the office.
The Holy Crusades were a series of wars fought by Christians to control the Holy Land, the Holy Land was Jerusalem and other places where Jesus lived and taught.   Answeâ¦r   The Crusades resulted as a reaction of Muslim aggression against the Eastern Roman Empire (Byzantines).
10 Events that Led to World War I. World War I was caused by a combination of several factors but above all, it was caused by the tensions between the European powers and crisis of the balance-of-power system that divided Europe into two camps. While one camp, joining Great Britain, France and Russia (Triple Entente) strove to preserve the fragile balance between the European great powers, the second camp that formed around German Empire, Austria-Hungary and Italy (Central Powers) was challenging it.