The EBV Infection Spectrum. EBV has a particular affinity for the cells that line the mouth and throat. Once the virus inserts itself into to a specialized immune lymphocyte (B cell), it hijacks the DNA to take control of the cell forever. When cells of the mouth and throat naturally slough off, EBV is shed into saliva.
Causing the Civil War. Historically, textbooks have taught that incompatibility between northern and southern economies caused the Civil War. The industrial revolution in the North, during the first few decades of the 19th century, brought about a machine age economy that relied on wage laborers, not slaves.
How and why did World War 2 start? The Treaty of Versailles may have set the scene, but WW2's main progenitor was one man: Adolf Hitler. Most historians of the causes of World War 2 agree that its seeds were sown at the end of World War 1. How did the First World War start? In 1918, the War Guilt Clause of the Treaty of Versailles held Germany and Austria-Hungary responsible for the entire conflict and imposed on them crippling financial sanctions, territorial dismemberment and isolation.